any experience?

As far as I know, the prioritycolocation.com is a new company, so there may not be many opinions yet. :) Just like you, I still want to know any comments on them as well.

There was a time my server was down and I was a refugee of PriorityColocation for a period. I didnt have a dedicated server but a hosting account. I found Myles to be one hack of an aggressive youngman, sharp and knowledgable about business and technical matters. His response to support calls were fast and very impressive. Even more awesome was the fact that mine was a free account and yet he didnt think it was any less important.
I wasnt sure if the other company you mentioned was transactglobal (sailor's company), so I couldnt comment on them. If its them then thats another good company. If its a different company, I'll edit the post and remove the comment.

Goodluck