Its pretty good. Kinda slow cpu, but snappy enough for basic stuff. Nice screen although lower res. Loads of crapware, most can be disabled. Jellybean update is supposed to be out, I haven't seen it yet. A plus is support for up to 32gb micro sd.
I like to compare it to a droid x in terms of size and screen res, but with a faster dual core proc and newer os and hardware. I bought one, and ended up not being happy with it, sold it to my dad and I got a nexus 4. Depends on how much you use your phone for. I like the fast performance of the nexus 4 and the cutting edge software updates, 2 things you won't get with the l9. That said, its decent and does the job if you don't care about phones that much.