Has anyone tried this keyboard yet (Roland EM 55) ?

How are the sounds (voices) compared to Yamaha PSR2000 or KORG PA 60 as produced by:
1) Onboard speakers
2) Amplified sound system

Are the styles (drum rythms) also comparable ?

How about the fill-ins and variations, how many and does it allow changing variation without fill-in ?

Thanks, guys
Han