Anyone compare Zesto with Backert preamps?

Yes, Greenfield Wisconsin .    Matt has been great to work with.     If you click "home"  or refresh the Toolshed home page my amp is the first to pop up in the slide show.   

It was worth the money and the wait .    Build quality is over the top.   Last amp I will own.   

Those amps are beautiful.

I have high expectations for the Toolshed 205d preamp,  but I would be lying if I said I didn't miss the Leto.    It is a must audition piece , it's been on many best of lists .   

I owned it for about a year and honestly if I could have kept it I would have.  It is that good of a piece.    Selling it paid for a good chunk of my new build,  so I had to let common sense prevail. 

Good to know you had a very positive experience with the Zesto. It is high on my list. Sounds like you have not auditioned the toolshed pre before ordering it.

I think it depends largely on what type of sonics you are seeking.  I've read pro reviewers indicate that the Backert (particularly the Extreme) sounds close to solid state - very quick and handling transient well.  This may be what you're seeking, while the Zesto may appeal to those seeking more of a classic tube sound.