Has anyone tried the Speaker Match Plus ?

I just received the Speaker Match and the Speaker Match plus for Demo.

After just a few minutes, the Speaker Match Plus seems to be quite impressive. The music is quite a bit louder at the same preamp position and the images seem to be more clearly defined. But, this is after only a few minutes of playing time. I'll continue to review them more this weekend.

I'm also going to experiment with the regular Speaker Match with my Home theater speakers.

So, just wondering if anyone else has tried these units?