XRAY - Model racing cars

Hello everyone,,
I've been wanting to upgrade my looper for a little while now, and now that my board is finished for the year, I think I'm ready to grab a decent looper to throw at the end of it.

I want to be able to record at least two, separate tracks. Effects like reverse or half speed would be good. And I'd also prefer that it wasn't too expensive, either. Although I doubt I'll be able to avoid that...

I'm looking at the RC-30, as I like all the effects you can apply to each loop, like the step sequencer and sweep filter.

I'm also wondering about the TC Electronic Ditto X4...

However, if there's something better out there that I need to consider, please let me know!

Your post is really helpful!