The response time is unparalleled and I believe this level service is much better than what you would find with a multibillion dollar megacorp hosting provider. INAP seems much more personal and genuinely helpful. More than once I called in and asked for help accessing my server I accidentally locked myself out of and they had a technician plugged in with a KVM sorting me out in very little time.
The speed of their hardware is excellent and their infrastructure is quite stable. I believe there has been one short outage since 2014. I wanted to write this review to let other sysadmins out there know that even though this is not the biggest or most well-known hosting provider, they are definitely worth checking out as I have experienced none of the horrors I hear about with other companies. Manje