I bought one of these last week and have ran 2 brews through it, and having the strainer made BIAB even easier than what I am used to.
The strainer sits about 1.5 inches off the bottom of the pot, so there was no issues burning the BIAB bag during mashout or anything like that.
Whilst the Aluminium is not the thickest I have seen, it is certainly more sturdier than some other bargain basement, SS pots that are around.
The handle holding the strainer is reasonably robust. I found it very easy to lift the strainer / bag out and hang off a hook. I then was able to get a SS pot lid and press down on the bag inside the strainer to squeeze out as much wort as possible.
So for the cost I have found it worthwhile.