To me, Steppy is no-brainer. It has 4 tracks, each 64 steps. You can do so much with this that it is a must-have, imho.
And it is easy to operate, the layout is really well thought out. The buttons are precise and makes you confident as a user.
I use it to trigger envelopes, switches, and events in my rack. I am actually thinking of buying one more. When my rack grows... :-)
And I must add, I trust Thomann, they always fulfill their part of the deal, and I say that because one time there was an item missing in a package I received, which can happen to anyone, even the best, but they sorted it out professionally and that made me happy as a customer.