I wouldn't touch them with @
Amitz's 10 foot pole either. When you add in the cost of revenue lost due to downtime and the time value spent opening support tickets Contabo (just like those big RAM unreliable Buffalo VPS providers) isn't really that good of a deal and will end up costing you more in the long run.
If you want a good VPS in Germany I'd recommend any of Bradler & Krantz's brands (ProviderService.com, UltraVPS.eu, GetKVM.com).
If you want something in Germany with 14GB RAM you' be better off getting a dedi from Hetzner (or their ServerBidding.com auction...just avoid the servers with aging 1.5GB and under drives) or ProviderService.