Review: reviews SWsoft Virtuozzo for Linux 3.0 published a very brief review of SWsoft Virtuozzo for Linux 3.0, providing this conclusion:

Any business or organization that’s looking at virtualization should put Virtuozzo at the top of the list. It’s a really powerful solution that’s relatively simple to administer and use.

Virtuozzo is not the same type of solution as VMware Server or ESX. Since Virtuozzo approaches virtualization differently, you don’t have the same operating system flexibility that you’d have with VMware Server — want to run FreeBSD, Linux, and Windows on the same machines? Then Virtuozzo isn’t the offering for your organization. Want to use a virtualization solution that helps partition servers into multiple Linux VPSes, and makes things much easier to manage? Then I’d recommend checking out Virtuozzo when you evaluate solutions.

If you’re an “open source at all costs” type of person, take a look at SWsoft’s OpenVZ instead. OpenVZ has a subset of the features included with Virtuozzo — you can still run multiple guests on a single host, and it offers much of the same functionality in terms of QoS features, but it lacks the GUI tools and utilities that make it really easy to manage Virtuozzo.

Read the whole review at source.

You may also be interested in reading the review of SWsoft Virtuozzo for Windows 3.5.1.