I've read alot of Komura Sensei's works and I have to say; this might just be my favorite one. Why? Because it makes me laugh and that is something not many manga and Mangaka do. It may even be in my top five of all time.
The thing about Usotsuki Lily is that it doesnt take itself to seriously. Actually, I think it makes of point of destroying our expectations of anything to dramatic. Even with all the parody and gags, it still manages to be completey enjoyable. All the characters are lovable (seriously, you can't hate any of them) and they all seem pretty human (most of the time).
It may seem like Hinata and En are the main characters (and they are) but in reality, I think that the manga is about the group of friends. Honestly, Usotsuki Lily wouldn't work unless it had a splendid cast. En and Hinata's actions wouldn't fit and it would end up being a boring regular manga. From the super sadistic, though suprisingly masochistic best friend, Naota, to the weird talking sword otaku, Kenjirou, you'll feel a sense that they belong there and are definetely needed. Same with straight man Taiyou and En's foil of a brother, Ten. Together... The manga is amazing.
The best thing, in my mind at least, is the explanation of "manga time" as I refer to it. Often you'll see at least five valentine day in one series (if it goes on for too long) and the same for pretty much any big holiday. Yet... It seems like no time has passed and the characters are still in the same year as they were when the first Christmas/New Years/ Valentines day happened. It doesnt make much sense and leaves you a little annoyed. But, in Usotsuki lily, the characters openly admit that though they are getting older ( I think by chapter 71 the Main characters are 18 and in second year still. Lolz) they still stay in the same year, AND without getting held back. (Poor Ten, forever an exam taker.) Komura sensei even went as far as to repeat the same chapter setup twice, though admittedly with different results. Its refreshing.
So, if you are in the mood for a pick me up, or something that will make you laugh, I suggest Usotsuki. It has pretty damn good art and the plot (or the lack of any real one) is good too. En-joy!