For what it's worth, this was one of the companies I tested for a recent project of ours, as we were in the market for European hosting. While we ultimately didn't use exoscale, I can only say good things about them. They were very professional and gave good service, and even voluntarily gave a refund on the used prepaid credit.
I say this, as when trying a bunch of small providers you never really know what you're getting into. As an example one of the companies we tried was entercloudsuite.it which is quite literally the most ridiculously worst company I've ever dealt with. At a point during our benchmarking they they froze the account (with zero warning) and locked out access (?!) and refused to give a refund. Correspondence with their (Italian) staff hit a huge language barrier and their explanation was when we originally registered we had multiple attempts at getting the credit card right (possibly fat fingers?), they refused to be reasonable or restore access, and had to solve the issue with a credit card charge back.
Sorry that diverged into a rant, but if you're int the market exoscale is a good option (along with what we ultimately went with: OVH)
