A significant problem with today's media entertainment furniture units is that they are designed by staff that
don't have a clue about adequate free-air clearance for the components and cable routing...
Just my $0.02...
Yes, if you must have one it must either be DIY or custom built to your specs. Even then they are a lousy idea.
Part of the problem is manufacturers. We need to move to separates for lots of reasons now.
Receivers are too big and ugly.
Chip designs and circuits are getting smaller and using far less energy. However they need to run cool, very cool.
This means it is now totally unacceptable to place circuits with microprocessors, HDMI boards in with power amps. This already is leading to, and will increase the rate of failure of receivers.
We need small profile pre/pros. Then we can have power amps that have more choices form two channel all the way to 11 or so. These can be tucked away out of sight.
This will also allow the wider use of active speakers.
Receivers always have been an abomination basically and are now going to become even more major sources of failure and trouble.