Lovestruck

I never really saw any bugs but there does appear to be some - the answers page has about 14 listed.  That being said I don’t think it’s a particular buggy pack, the patch it came with caused some issues but it generally went down much better than for rent and growing together.  
As for the gameplay I really like it personally.  It has been criticised for not having that many features, there’s less to do than in life and death.  But I think what is there is really nice and all my sims have turn ons/offs, use the new dates and romance skill etc and it inspired me to build more bars and date spots.   Online dating is very good for getting new sims into your game quickly.

I think the CAS is the best in all the expansion packs.  I think the build is good but lacks some key items (no kitchen) but what is there is mostly nice.  I think the two traits are two of the best animations in the game (and there’s nice animations in general).  The world is nice and fine for a sim to live in.  It can feel a little empty but has a bit more to do than recent worlds like tomorang and San sequoia.  

I really connected with my sim I made for this pack.  That being said the pack is one of my favourites but it’s also divisive and not everyone feels this way so get some more opinions and watch some videos.