I had a Tac CS 929 in my system, at the time of purchasing I had compared it to a couple of far more expensive units ( music work 6 way, and QED Qonduit) and it compared favourably.
I have however since bought a Belkin unit which retails sub £60' and it was a lot better, add to that the Belk was on offer at something silly like £12 !
I have been told internally the Belkin is basically a PF 30, a very respected mains unit, but if you can't get a Belkin, the Tac is a great unit for less than £30.
PS I never personally never noticed a detrimental difference with my amp, a meaty 200 per channel Lyngdorf, when plugging into the Tac. Ymmv.