I don't recommend ipower. They once have suspended my account without notice for my plugin. And now they have locked the cache directry under the wp-contet.
What they said by e-mail after a few days of the sudden shutdown was that some scripts are causing an extreme high load on the server. That's it.
They don't provide the details including how much the server performance was affected, specific names of the scripts, numbers of process, information of memory and cpu resource usage.
To me, it's just for no reason.
I had a plugin script which retrieves rss feeds with magpie and creats listings by categories sorted by time. That was the core part of the site. After they unsuspended my account, I modified it to run less freaquent. But they didn't like it. So they now locked the cache directry which other scripts are also using.
If you are a coder, it will very discourage your motivation to write scripts since making scripts is like weaving little secrets, especially if you don't publish them. If you get a locked directry all the sudden and you will feel intervened.
After all, what they say is to upgrade the plan to VPS's, which costs around 50 bucks/m. It's ridiculous that the money won't come back which was paid annually if I discontinue them.
If you don't run heavy scripts, then they might be ok.