I would argue Hetzner is much better than OVH price-wise and I've been using a multiple-datacenter scheme with them for several years now for several of my clients. And they're very happy because the cost is so reasonable.
Depending on what exactly you mean with multiple datacenters, make sure you take a look at the pictures of their DC sites - the DCs in one location may be right next to eachother. Like having your servers in SBG2 and backups in SBG1.
You would need to use multiple locations, not just datacenters, for durability. The network performance between locations just isn't as good as between datacenters in the same location.
With AWS, the "datacenter" isn't a concept users have to worry about (or can even discover or manage). Each AZ comprises many datacenters, each region comprises many AZs, and AWS makes it easy to deploy most services across multiple AZs in a region. If one AWS datacenter goes down (and this happens occasionally), typically only one AZ in the region is affected.
Public rates offered by Hetzner are definitely slightly cheaper than OVH, but OVH offers vastly better volume discounts to even fairly small businesses (talking like 10-20k/mo spend).
IME OVH also offers much better connectivity around the world (which makes sense, given that they operate at a much larger scale than Hetzner)
Oh, and Hetzner billing support is absolutely terrible. I had to fight with them for months to stop charging for servers which had already been cancelled, after tens of emails they eventually owned up to having a bug on their end. It was like talking to a wall.
I've had the opposite experience. OVH charged my creditcard twice for the same payment, then simply refused to see the issue. I sent screenshots showing both payments, they just kept reiterating there was only one invoice (which was exactly the point). And every interaction typically took about five days -- for each follow-up to the same ticket. Had to revert one with my creditcard provider.
With Hetzner on the other hand I've had technical support issues responded to adequately within two hours, multiple times. As a small individual customer no less.
> With Hetzner on the other hand I've had technical support issues responded to adequately within two hours, multiple times. As a small individual customer no less.
Hetzner has very good technical support, definitely no complaints about that. It’s their billing department which is downright unpleasant to work with.
I had the opposite experience - OVH support not responding for several days for fairly simple cases. They even forced me once to send a fax to them..
I also had several outages with OVH (Exchange and Dedicated Server) - none yet with Hetzner. Right now planning to finally leave OVH for Hetzner and Microsoft (Exchange)
