I think your experience will tell you about that. I think that is pretty good solution to have unlimited account. So far my latest sign up was limited company of metric-hosting.ca. I need to cover part of my audience in Canada that's why I use their services.

Interactiveonline has quite an attractive unlimited account and they are well-known among the web masters because of their reliable services.
Why not trying them?

I suggest you to look for reviews on recommended hosts. As I know quality unlimited hosting services are provided by Hostome.com, reputable web host with reliable stable solutions and competitive prices, you should definitely give them a try.

I am not sure about the company you mentioned but all the unlimited accounts seem to be unreliable as many unlimited accounts are setup on the same hardware and may create problems incase the server overloads which is seen quite often incase of unlmited accounts.

Unlimited accounts are not reliable because initially they commit to provide unlimited space and bandwidth but later on they fail to provide more once your limit exceeds.

“Unlimited account” is not technically possible, it is a marketing term. Hosting provider permit you unlimited space and bandwidth once you don't cross a particular limit. Once you cross the limit you have to pay for everything.

i will suggest to u try ideastack.com for best and cheap vps u will get.
server 99.9% uptime,24X7 support.