I replaced my TS55 with the TSC... I'm very satisfied. Don't mind switching the vacuum on and off manually, can't be too cordless on the construction sight if you ask me.
Its powerful enough, maybe a little less power than corded. The machine will not tolerate that you stress it, so let the machine do the work.
I have two 6,2 Ah batteries in it, they run out rather quickly. It does not work with compact batteries. Plywood is no problem but a lot of thick wood, then corded is probably the sane choice.