I have been an Oregon Mines customer for about 1 year now. I am very happy with their facility. I have about 20 miners (Bitmain, Avalon, and Ebit) hosted there. They have always responded to any issues with miners being down and needing a reboot. The only downtime I have experienced is once, when they adding more capacity, the power was shut down for a few hours.
They setup up my VPN access quickly, and without issue.
Though they are a little slow lately at responding to email, they always take care of an issue in a reasonable time frame. Recently had a miner go down. I emailed that night and it was back on line with in a few hours after finding it was a dead psu.
Their invoicing process is sometimes rather slow, but they always get my new miners up and running within a day or two after delivery.