I’ve been using Contabo for more than one year now with several VPSes, and honestly, I cannot really say much bad about them, their server rocks! and this my contabo review

At first, we purchased a mechanical disks VPS, and that’s not really the best. It’s rather slow, mainly on IO. We run a low priority ISPConfig panel there, and MySQL sometimes takes times to return results, and apt installations can take more than expected.

After that, we purchased only SSD VPSes and they’re very fast. With SSD hosts IO responds very fast.

Other than that they give you plenty of RAM, 100M symmetric connectivity (not throttled, per my experience, though I never tested them with unfair usage).

The only problem I had with them is the IPv6 connectivity: sometimes I’ve had reachability problem, usually on a single SSD VPS. But these interruptions have been rare, and usually resolved within a day.

Support is ok, they respond via email within a few hours, 24/7. Their first level support is a little basic (like for most services) if they cannot fix they escalate. There’s also phone support available but I never tried.

Drawbacks of using Contabo:

• they don’t provide backups: if your VM crashes or whatever they don’t have a backup solution, not even they offer one. If you have SSD VPSes you have
• snapshots available, but they also say with no guarantee and are kept for a limited number of days;
• you can purchase backup space, but according to the guide it’s available via FTP only and it’s very expensive, more than buying another VPS with the same space! Amazon S3 is more friendly by all means;
• I never investigated but you probably don’t have high availability for VPSes, that is if a hardware node fails.
• Out of curiosity, they use Proxmox and KVM virtualization.

To recall your first question I still have to understand how they can be so cheap. They’re incomparable to any other VPS service around!