Hi Pedrillo:
I've had plenty over the years. Started off 25 yrs ago with the built in phono in my Audio Researh SP 6b...
More recently (past 8 yrs or so) I had a BAT VKP5 which I soon traded for a VK P10, then upgraded it (at BAT) to a P10SE then a P10SE Superpak as they come out with em. Everytime marked improvement.
About a year ago, I moved to a Nagra VPS.
All of these phono stages are very good. I happen the like the Nagra the best, in my current system. I've changed other components over the years so system matching comes into play here to.
I have a friend that says the Allnic is wonderful, I might have to try that next :)