The best thing about T servers (and Dell equipment in general) is support. Being assured that in the event of failures, hardware components would be delivered and replaced in the fastest possible way is something that distinguishes Dell from other vendors. When you go with Dell servers, you won't be disappointed.
It is easy to upgrade all necessary software, drivers and firmware. Built-in iLO allows you to manage the server from remote locations with the ability to perform cold shutdown, view the console and information regarding the status of different hardware sensors. This could be also passed to the virtualization host so you can act proactively and eliminate problems more efficiently. Review collected by and hosted on G2.com.
We had several hard drives failing after certain use. This is probably corrected with newer discs. In addition, we have purchased departmental servers which were pretty big and kind of noisy when fans kick in to cool down the system. Review collected by and hosted on G2.com.