Hello
I'm using MultiCharts, it works perfectly (IMHO) and after their latest release the performance is okay - it uses alot of ram (300kb) but that is maybe because I have 6 Workspaces each with between 2 and 4 charts
I've only seen TS at videos, TS is a much more mature work - no doubt about that, but TSSupport is ongoing in the developing MC, besides that, they are very nice in their forum and listens to new ideas for whatever feature you want.