Studio 192 mobile good for VSTi's ?

I'm considering the Studio 192 mobile (guitar center has these at 299! with the free faderport offer, sounds too good to pass up!) ...I'm getting a little scared about all the stuff I read about the realtime latency when using VSTi's...I use VST drums and sometimes synths and such and also use 3rd party recording software, SONAR. Any valid conces from owners before I buy? They have a easy retu policy but some reassurance about the units performance would be much appreciated. Thanks.