Transit in PVG is terrible though I was able to have a shower in the lounge around gate 19 or 21, can't remember which. I was directed to the Gate 22 lounge too but when I asked for a shower, they sent me to the one of the other lounges which was empty but there was a functioning shower. Other than that all the lounges are fairly terrible in PVG though I believe a revamp of PVG T1 would change things a bit and a SkyTeam lounge should also be in the works if the revamp is complete.