sorry (Score 3)

they *all* suck. the best you can do is try to wrest a decent SLA from them, so that they pay for their mistakes - it's small comfort when your pager goes off at 3am because their power glitch hosed a server. They have the latest, greatest UPSs? Great! But you'd better install UPSs in your cage, too. One prominent colo dropped power to our cage 3 times in 3 months. Don't expect to pack your cage to the gills. Many providers have inadequate cooling. It got so bad at my last job that i bought a large LCD thermometer, and put it in our cage facing the main doorway. I had a silent hope that at least one prospective customer would see a reading of 82 deg. F, and ask some questions. You can shift the ventilated floor tiles around all you want, but unless you have adequate cooling power in the first place, it doesn't make a difference! (hint,hint) Don't rely on their expert technical staff. The big colo players seem to have the lowest-paid drones around. To do anything much beyond power-cycling a machine is risking more problems than you started with. And in many cases, that goes for their "security" staffs, too. enjoy!