LG enV VX-9900

how good is the AOL Instant Messenger on this phone? i've had numerous phones like both the Sidekick and the enV and so far, the only one with incomparable AIM was the Sidekick. it's quick, you can see away messages, and its easy to use with little to no lag between messages. opinions are needed! thanks. also if there is anything else i should know coming from the T-Mobile SK3 to the enV please include that as well.