First of all, this is not an AVN, it is an adult game. There is not much of a general story here as an AVN would have. As for the bugs: yup, quite a few, however that is to be expected for a game this complex during development. If they stay after the final release, that'd be a different beast. As for the artwork getting dated: i don't necessarily agree - in my opinion it still holds up for what it wants to do. No animations these days is an issue, sure, but please do not give Andrealphus any ideas of updating. This has killed many a game which by now is stuck in the endless cycle of new hardware - new software - remake of old content - new hardware, and so forth. But that's the pitfall of a single dev or a very small studio - you need time and will be outclassed. No way to counter that no matter how many updates and upgrades you do.
That being said, I still rank this game very highly because you have to earn your happy ending, animations or no. Difficulty differs depending on whom you fancy of course, but while we get a few complaints in this thread about how people want to have an Emma/Cassidy harem or similar, for me - even though I am a "Pokemon Harem" afficionado - this is a big plus and adds to my feeling of accomplishment.