just found this site, and the tool looks great, can anyone tell me if it is good for me. Www.optimizehosting.com

Yes, you can if your hosting company use apache servers !

Have anyone tested this tools? Is it really useful for less CPU resource?

I'd like to point out that it is very useful tool. As you may read people reviews who have already used it that it is easy to select the best trade off between image quality and file size. The user has compressed the jpgs and gifs, the files are smaller and the pages load faster.

Yes it is good one

Just ask ur hosts once ...

Good, useful and beneficial Tool.