OT: Dell EMC switches

Hello everyone,

Does anyone have experience with Dell EMS switches?

Namely S4100 series, S4128F-ON or S4188F-ON.

Are they robust and reliable?

I need to replace number of Extreme Networks X650. 10G ports are loaded
nearly 80% all the time. We are pushing Internet traffic and some multicast.

Also, Dell EMC support third party OS like FTOS, Cumulus Linux OS or Big
Switch Networks Switch Light. It it means any good.

Thanks,
Ivo