I'm looking at getting a 10 gigabit network switch. I only have 3 devices that could use that speed right now but I do plan on upgrading things over time.
Have run hundreds of these and never had an issue. Never even had to do an RMA out of the box.
If you're seeing packet loss on switches, you may need to pay attention to what "port speed" and total "switch fabric" speeds are these days. You can have a 10 port 1Gb switch, but the total fabric only does 6Gb.
The loss did occur on simple ping commands, only on 2 out of 5 ports. The vendor confirmed the behavior to be faulty and took the switch back.
Maybe it was just a faulty model? However I do use multicast in my network (corosync) and a lot of 10G switches seem to have problems with that, maybe this was the case here, too.
The exact model is TRENDnet 5-Port 10G Switch, 5 x 10G RJ-45-Ports and there sure seem to be quite some people having issues as well...