I wish I had access to this stuff when I was a kid. The price is right here too as Hobbylinc seems to have this for way less than everywhere else I look.
The consistency of it is so watery that it's extremely easy to work with. I've been getting great results by assembling two pieces together (or even just holding them together by hand) and then brushing a little bit of this on the seam. It seeps in between and forms a joint very fast.
I was worried about how durable it would be on some older models where there's just one or two points where the pieces really connect. It worked by applying some to just the connection points and quickly pressing them together, then after holding those together a bit just brushing a little across the seam.
One thing to note is this stuff is VERY strong, even in a ventilated space I'd have an extractor/fan going during extensive use.