I have TP, zippy and turnigy and honestly I can't tell the difference. I paid more for my TP 2s pack than I did for 2x turnigy 4s hard case packs.
Even if my turnigys only last 1/2 the time of a tp pack it's all good because I only paid 1/4 the price for them. And as far as I can tell running them for the last year they last just as long.
I've turned a few guys on to hobby king lipos and they all love them. If u can wait a week or two to get your packs then in my opinion you should try them.