« Very good but with some gaps »

It has MIDI and USB connectivityIt has editable effects for guitar and bass
It has he an interanl house bank of 500 patterns and 500 editable patterns
the sequencer is basic type drum to base rhythm

UTILIZATION

basic configuration is not intuitive but you get used to it
the manual is very clear
editing effects is very easy without any problems

SOUNDS

sounds are facing all styles but the sound of snare drums sound pretty rocking. emulations of some drum machines like Roland TR 909, 707 etc.
velocity does not go very far in the levels that sounds pretty much like a machine no matter what.
There is no real sound that I like, it is very typical rock, you do not find the heat of the 70's

OVERALL OPINION

I kept it for about 9 months and then sold it. This is the first model I had. What I like about it is the ability to play guitar with the accompaniment.
It is very / too expensive brand new, memory is the worst point, absolutely. 
A virtual drummer plug-in works much better, addictive drum genre or groove agent that I love alot.
I will not repeat the choice of a product, I prefer rather to work with software.