I own a wave (S8500). I bought it due to 1) SuperAMOLED screen, 2) Fast 1 GHz processor, 3) 720p HD video recording, 4) Couldn't find suitable
Android phone within that price bracket, 5) Was curious about BADA OS. Screen is excellent (I wish it was bigger though. Wave's screen is 3.3 inch). Processor is FAST, response is almost instanteneous (unlike those disgusting symbian phones. I used N73, N82 & E72, All are slow like snail. But Wave is blazingly fast and interface is very cute). Video recording is excellent. You can easily shoot video in moderate light, and see it in a HD
TV, and people will think that the video is taken with HD movie camera!! What I like most are the following features that you won't find anywhere else : 1) You can take photos and videos silently, so covert photography is very easy

And they will be in HD too!!! 2) You can record every phone conversation secretly without any beeping sound. 3) Built-in call & SMS blocker, 4) Fake call simulator 5) Very good battery life (1500mAh battery). These features (As I am told) are not available in Wave II, and no SuperAMOLED in Wave II. The only downside is the OS. BADA is good, but has very small userbase, so you cannot find any usable software for BADA. Only if someone can develop android port for Wave, it will be the best phone at this price bracket.