Hey,
So Panamax / Furman have LiFT and SMP, if you have those features it's among the better noise suppression available. Forget the audiophile noise meters, they don't have enough data to understand if they even matter.
I used my Furman in several rental units and always noticed when it was absent. I'm now in a home and my power is much cleaner. Now I use Furman because I live in a lightning prone area. .
Smart switches are fine so long as they are properly rated for 15A.
Please be careful in using too many surge strips. Try not to daisy chain strips and extension cords as the latter often are barely rated for lamps and lack fuses or breakers. There is a real fire hazard if used carelessly. Especially don't put a surge strip after a UPS.