I was on kimsufi server for the last 3.5 years for all european projects from small to medium sized and we never had any problem with one of the servers. the last few weeks we are switching partly into the cloud and partly on an OVH Host-32 server.

price-performance ration at Kimsufi is fine from my point of view. I guess anybody who is ordering a VPS for 8€ / month should know that he will not get the latest technology in his box, but for the one or another usecase, such boxes are awesome.