I've found dealing with Parc spectacularly bad. The lady who gives her name in the adverts on this very site is bad at following requests up. I applied some time ago in December, but have heard nothing since. I guess they must have too much demand.
Bond seem to be quite responsive. I passed their SIM assessment, and they seem reasonably forthcoming.
The only issue is hours. A TR on its own is useless and 100hrs on type is not enough. All adverts for jobs indicate 500hrs.