I have no regrets with this product. Working in a reasonably live environment, I've tried everything to get control of all the classic faults to sound recording.
Thick blankets over windows, on walls, sound deadening materials everywhere, booths you stick your head in, you name it, tried it.
This booth has from day 1 provided perfect results. Not one quality rejection.
I've mod'ed it with a screen in the booth, and attached an adaptor to hold the mic. Wireless mouse in my pocket allows control of the recording terminal when working solo.
The 'window' I dispensed with, and used the additional foam that comes with it.
The PiR Light is great quality.
Yes, it takes a little of brain power to assemble, but, I did it on my own with no problems. Everything fitted well.
I can well recommend this, and the price is reasonable considering the quality - not just of the product, but of your recording results!