P.S. Audio Quintet? Worthwhile?

The PS Audio would be a lateral step and not an improvement from your current powerstrip.
It might be very slightly better, but not enough to swap with your current one.
If you are using stock power cords, i would recommend getting better cords.
The PS Audio Quintet retails for $400.
For less you could buy great replacement power cords for all your gear.
The ones i would recommend are either Shunyata Venom3 $120 for two meter length

(best length is two meters for most power cords. Shorter ones just may not be long enouogh to gain the full benefit of an aftermarket cord, and the extra length is only a fraction of the cost, plus it will always be long enough, even if you move stuff around)

Or Pangea with the 9 gauge for the integrated, and the 14SE for the other items using IEC powercords.
I think you would gain more using aftermarket cords, than the somewhat lateral shift to the PS Audio Quintet, from your current strip.
PS: I own a PS Audio P600 regenerator, AND another PS Audio PPP regenerator.
Good luck.

Mine certainly helps; I was using a Balanced Power Technology power strip with a Oyaide GPX PC and the Quintet was a noticeable improvement. Exactly how is a longer cord an improvement? I use a one meter Python Helix from the wall to my Shunyata Hydra 2 for my CJ 350 and it works fine. After all PCs are PASSIVE components and one would suppose that the shorter they were the less they would impose their sonic signature on the current passing through them. Unless , of course, you like what is added. I have seen the same idea expressed about length of Digital Cable and haven't found a difference there either. But I use a considerably higher grade of PCs, most of mine cost as much as the Quintet. I formerly used 2 Quintets before getting the Hydra so I could use 20 amp cables[ the CJ used a 20 amp cord]. A friend now has the other one and he is also very happy with it. The PPP does offer another level of performance but at 3 or 4 times the cost. [ I know, I bought one].

Interconnects and power cords can last many, many years.
I have purchsed shorter ones, and then, the natural problem of changing stuff. and the wire is three inches too short. Buying longer ones in the first place really saves in the long run. Especially since like the Venom 3 the added meter is only $20 more, not another $100 more.
The other consideration is not worth bothering over. If i=you want nothing from a cord, that is what you want.