How are marantz separates?

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How are marantz separates?
I was thinking of McIntosh for home theater but the price is on the high side, and when I ask them questions I get poor customer service responses like "talk to your dealer".
Anyway I'm thinking of Marantz separates, do they handle 4 ohm speakers well? Will it get too hot?
Marantz said they do 4 ohm fine yet I can't find that on their marketing material so I'm a little spooked.
For some reason Denon's higher end AVRs state they safely handle 4 ohm speakers, and the higher priced marantz doesn't?

Anyway please let me know your experiences if you don't mind.

Also how is user friendliness for the wife compared to Denon or McIntosh?