I and several of my clients use quite a few of those and I'm very happy with the performance. IO performance is very good (especially for a virtualized system)

I and several of my clients use quite a few of those and I'm very happy with the performance. IO performance is very good (especially for a virtualized system) for example apt-get update / upgrade takes less time on one of those than it does on a dedicated root server of mine (Core i7 Quad, 8 GB Ram, 7.2 kRPM SATA). Any other specific questions?