Excellent change. Dual power supplies, full feature, and everything you need is in the box.

Have tested it and it works like a charm.
Price and quality is in line in what I expected.

Just want to inform all item already installed. And in good conditions.

the S5800 is preferable to stacking. S5800 supported LACP with the stacked S3900 series to obtain more than 10gbit speed between the S3900s and the S5800s. Due to the almost half price of the S5800, we got all existent Netgear switches replaced with FS within the budget.

If you're looking for an inexpensive and easy to setup and work with a 10g switch, this is it. I've owned or installed and managed at client locations a few other 10G switches such as a Cisco 4948E, the Mikrotik 10G switches and for simplicity, this S5800-8TF12S is about the best. By the way, the web UI of this switch is intuitive and straight forward.

We used DHCP Snooping on the switch to prevent end-users from serving DHCP to our network. I attempted to also add IP Source Guard, but can't seem to find a way to limit only to a VLAN, so it blocks all traffic on the VLANS where snooping was not on. The S5800 series didn't support using command to enable the IP Source Guard only on a specific VLAN at that time. The FS team should consider to optimize it.