I was moved to Bluemile "in the middle of the night", after an they apparently acquired Fivebean. Fivebeen was great, but there was absolutely no warning whatsoever until I got a bill from "Bluemile" one month, and found the Fivebean was no more.
I have had no issues, I have a couple of VPSs, and they retain good uptime. I have no idea if I was transferred to the could based VPS (yet), but my IPs never changed.
Not exactly what you were looking for, but no one else has info, and two of you were asking, so thought I'd put in my .02. I've had no issues since the move a couple/three months ago - uptime from both -
12:45:25 up 80 days, 9:54, 1 user, load average: 0.08, 0.02, 0.01
12:45:58 up 98 days, 13:34, 1 user, load average: 0.16, 0.03, 0.01