The site seems to work well every time I'm on there, I've been holding some BNK since their pre ICO and I'm already receiving passive income every week based on the profits their exchange is making.  It's been a bit since I researched them but I was excited enough about the project to stay up all night to make sure I got in at pre ico, their site was crashing repeatedly because of all the traffic, but even with that happening their live customer support was available and helpful, and I was able to get my BNK about 20 minutes before the actual pre ico started,  I've been happy with all of my interactions with them so far.