I detailed my experience in the Oregon Mines thread which is probably self moderated by those guys so I will quote here:
Early this year I purchased some used miners/power supplies already hosted at Oregon Mines and decided to keep them there.
After a few months of service I decided it would be best to relocate this equipment to a different hosting facility that I was using for my other mining gear. The pricing at Oregon Mines was not as competitive but I was willing to pay more if the service was superior.
Unfortunately the service was far from good. In the first couple of months there were a few small mishaps that annoyed me but I was not going to get too upset over. Then I started having an Antminer s9 dropping offline over and over again. I noticed it was overheating from a failing fan after looking at BMMiner status page. I sent several emails asking for the issue to be looked into but never received a response. This is when I knew I had to relocate otherwise I would start losing valuable equipment.
Relocating my equipment halfway across the country was not cheap. Plus, Oregon Mines charged an extra $20 per miner handling fee (which was suppose to include cleaning). They waited several days until late afternoon on a Friday to ship out which meant the equipment would be sitting idle an extra day (Sunday). I figured that was the final mishap I would have to deal with until the equipment showed up at the new hosting facility. The power supplies were so dirty that the new clean facility could not use them. This cost me even more money now that I had to order more power supplies to replace the dirty ones.
Oregon Mines service was poor, facility cleanliness is in question, and at the end of the day they cost me a lot of extra money. Lesson learned, do not make the same mistake I made.