Got this about 9 months ago, and it's still trucking along like a champ. I probably have 12-14 devices plugged in at all times, and have not had any ports go bad. It's silent. Transfer speeds cap out at around 114MB/s between two Server 2012 Release Preview boxes, which is around 915Mb/s. I am very satisified with the performance, and how it's just a PnP device. Great!
Plug and play. Just works.
Has 2x10Gbps slots, 8x2.5Gbps slots, and 16x1Gbps slots. All 24 of the RJ45 ports have a backlight that glows through the clear RJ45 connector on your cable to convey which port speed you achieved. Green is 2.5Gbps, white is 1Gbps, Red is 100Mbps. This makes it really easy to know if you have the right cable in the right slot.
Can have mixed ports (100 and gigabit) and negotiates correctly. Runs cool, and so far has been reliable.
easy to use
Easy to use, led lights to see connections, and small and takes up little space.