Kess V2 (error shipping)

[flamingsn3Ak3r]

Hi guys,
this morning I received a number of different interfaces that I ordered
but instead of the Galletto V54 ? arrived, by mistake, the Kess V2,
on the seller's site says that ? without limits and many other things.
I sent a message to resolve the problem, rispondendomi
that I had to return the Kess (and rightly so), according to you, what should I do?
better that I keep the Kess or do I send the V54?

Since under the council dle forum say that the V54 ? better..
but I'm undecided for the fact of what he has written on the ad:

moderated message


THANKS FOR THE HELP!!!