is it easy to get hold of your tokens? In many ICOs there is often a nerve wracking period of time after you send in your contribution when you are waiting to claim your tokens. the quicker and easier this process is, the better it is.
Nice question. I have the same think like you, at some project, my friend ETH is holding for 5 weeks when they cannot buy at ICO, and when i talk about Wikibits for him, the first question come to me is:"Does they hold my ETH if order is reject or cancel?"