Some famous reviewers have atrocious listening rooms!

Fremer's room is an Absolute mess, still, I bet it sounds pretty amazing.

I suspect many listening rooms full of crap and that look messy may actually be reasonably good audio environments. With little repeated dimensions and/or room treatment there's less likelihood of strong resonances in a room.

Several people here seem uneducated on what actually makes a room good for music reproduction. 

a big part of being experienced in this hobby is understanding room interactions and how gear setup (most importantly the listening triangle and proximate room boundaries) affects how the sound is heard by the listener

with a good understanding of this, once seeing a room and the system set up within it (or some good pictures of it), one has a decent idea of how the rig will likely sound... not 100%, but i would say at the 60-70% level, assessed by experienced hands... of course, some difficult rooms can sound quite good if the owner knows how to configure the system within it, manage the deficiencies ...

all this said, this doesn’t make any reviewer’s work worthless... as in all situations where advice is being sought and given, the recipient is wise to understand where the advisor is coming from, the operating context and experiences that may shape the views and assessments given... a cancer surgeon will often advise resection as the best course of action, whereas the leading oncologist may lean towards chemotherapies... it's just human nature, predictive of how human experience is gained over time and how views are shaped

"Nowadays I might read or listen them now and then, but strictly for entertainment purposes only."

Yup!  That's why I read these posts every night. ;)

Actually there is a serious point being made here.  I read and see often the listening rooms you All have.  I'm jealous.  My house/cottage is literally 20' x 20'.  So, of course my system is in the living room with the speakers on each side of the TV and no room behind to do any kind of proper cable management.  Small odd shaped room to boot.  Seven foot ceiling.  Not much room for proper speaker/Me placement.  The AC was done in 1960 by non-contractor type people.  Everything is in no way near built to code standards and the AC outlets are two prong.  Nothing was designed(or even remotely thought of) for todays electronics.

Noise Floor?  Mute point in my house. I have a small gas heater in my living room to heat the whole house.  The gas hot water heater is next to it.  The fridge is only 12 feet away.  So, something is always making noise.

But!!  I rent.  I pay $350.00/mo. and that includes the gas and electric bills.  AAHHHH.  Life is good!

Lawrence From MI