Anybody have any feedback on IBM i in the cloud providers?

Ran across this list:
http://joehertvik.com/community-post-list-of-ibm-i-hosting-companies/

Larger than I expected...which is a good thing.

I suppose I should automatically include on my short list ..

- iTech Solutions – http://www.itechsol.com/
- i In the Cloud – http://www.iinthecloud.com/

But looking for other recommendations or feedback on the others, such as :

- Cloud400 – http://www.source-data.com/cloud400/

What we're looking at is to spin up an small(ish) LPAR to use for
installation/configuration/data migration/testing of our new ERP package
(VAI S2K). I anticipate starting with just the IBM i, but external
Windows/Linux workloads will be added at some point.

At some point in the next 12 - 18 mo, we'll decide to either keep the new
systems in the cloud or bring it in house on new servers.

Feel free to PM me.

Thanks!
Charles