I really enjoyed this game and thought it really delivered as a sequel.
Mechanics
I like that a different mechanic was used from the previous game. The logic for the change was sound as I would have found it jarring to have to regrind all the stats.
The sex scene mechanics were better. There was a less intrusive interface, less fiddling about necessary during each scene.
I liked the hidden 'discoverables' in several of the locations. It rewarded paying attention to the surroundings and added to the replayability as, on later play throughs, I checked each location to see if I had missed anything.
There were several branching paths and yet the shifts following each decision point were smooth and never felt clunky or forced.
Reading previous comments I see concerns that the game was short. I actually felt that it was substantially longer than previous LoP titles. I think the difference is in playing time vs quality content consumption. It would have been easy to pad the length of the game by having numerous 'time slots' that were filled with low content activities. However, I didn't play LWT because of the 'typing on the computer' scenes or the 'doing the house work' scenes (I believe that MMOs refer to it as 'grinding'), I played it because of the interaction between the protagonist and the various characters. LWT2 could easily be padded to several times its current length with 'grinding scenes' of this type but that is all it would be, padding and grinding. I'm glad that in the sequel the game designers focussed on producing high quality character content as it both made sense in the context of the game and increased the overall quality.
There are two only areas that I think have opportunity for improvement. 1) I would like there to be a way to remove the interface from over the scene (some of the excellent artwork was obscured by text options). 2) I don't think enough use was made of Richard as a challenging antagonist. I think it would have added to the excitement/triumphant feeling if he had been more active in attempting to seduce Tracy and, particularly, Lisa (as she is officially 'single'). He might also have been used by the women as a way to pressure/manipulate the protagonist into giving into their demands. I also didn't feel that he was in particular competition with the protagonist. He rubs in his wealth, makes a point of showing off his beautiful wife and makes a pass at Tracy (camera scene). I would have liked to have seen more direct competition initiated by him. I think it would have made him more 'villainous' and increased his part in the story.
Art
Stunning. Believably proportioned, all the characters were significantly different and even the house staff were interesting (personally I'd have been keen to have some 'one-on-one' time with the maid but I like my cliches. The locations were also nicely detailed and there was a feeling of dynamic movement to the action scenes (and the 'action' scenes). The choice of locations and their realisation by the artist was also good. I felt there was a consistent tone to the area of the world and it helped differentiate it from the previous game's setting.
Misc
I was very happy to see that there were no spelling errors in the dialouge. It might seem a minor point but I find it quite jarring when I've stumbled across them in previous games. I appreciate that there are a lot of steps between script drafting and the final product on screen and also that Enlgish might not be a native language, but it makes a positive difference to me that LoP has got on top of it.
Characters
The writer did an excellent job of maintaining continuity of character between games. Both Tracy and Lisa showed believable character growth and their developments also made sense. I was initally slightly taken aback by Lisa's lustfulness but it was laid out in the previous games that, deep down, she was very sexual but it was held in check (to an extent) by her liking of Tracy. Once that taboo was broken, she was able to let her inner self out to play. Her interactions with Sandy in the previous game makes it all pretty clear. Antoinette was interesting and I look forward to learning more about her motivations in an expansion. Gabrielle was a bit of an enigma. Initially she seemed nothing more than a way to make some of the Lisa scenes more interesting but there is clearly more to her than that. I'm looking forward to seeing what the writer has in store for us.
Endings
I've only seen 7 of 9 so far but some of them so far. For me, endings are important because they contain the majority of the consequences for the decisions I've made. It shows how those decisions shape the lives of the characters and provides the final pay offs (good and bad). Of those I've seen, some were well written and showed how the story would continue for those characters, several others felt as if less effort had gone into them. I appreciate that they are not necessarily the main focus of an erotic game but, for me, I find them important and I appreciated the way that this game developed on from the original's.
Overall I was very happy with the end product.
I hope that I've been specific enough with my feedback to be useful but not so specific that it's boring or 'nit-picky.