Dreamhost is a large host in the market however they did have a recent billing issue which was VERY unfortunate. They basically billed every single customer by accident totaling 7.5 million dollars.

You can read the blog post here:

http://blog.dreamhosters.com/2008/01...omers-7500000/

This was big talk in the hosting industry and many people switched. This has nothing to do with their performance but their response to the billing issue did not sit well with all the customers.

Best idea is to read hosting reviews and get a good feel about what their own customer base says.

good luck!