I had an Eshopps PSK-75H and it worked great for 3 years, it never overflowed. The pump finally quit and I couldn't find a replacement, I had a first generation one. It was a pain to clean because the bubble plate wasn't removable.
I got a Reef Octopus BH1000 after and like it. It's a better skimmer IMO
but it's more touchy about being affected by water level in the tank and will overflow. It is pretty easy to clean. The Octopus is $50ish more though.
If you have an ATO I'd go Octopus no questions asked, but if not I'd go the Eshopps. That's my 2 cents between those 2.
This is on a 20H