I'll share my story, but first, a moment... you were in 3rd grade after ST6... I feel sooo old...
My experience was with the first AMT models of the TOS 1701. As anyone can attest, it was a simply model, until it came to the engine struts. Those things would NEVER hold the engines up. I attached the engines, and they drooped. I tried again, and they drooped again. Using the logic of a 10-year old, I decided to try more glue. LOTS of glue. AT which point I discovered that model glue works by melting the styrene. I tried that model 3 times, with no success. A couple of years later the ST Tech Manual came out (yes, this was THAT long ago), so I took a hacksaw to the remains and made some pretty decent Franz Joseph DDs out of them. Kinda wish I still had them. I do still have the 3-ship AMT TOS mini 1701, D7 and Warbird I successfully built back then - they went together well and withstood some rough playing.
Just this weekend I bought my son the Art Asylum 1701-E I found on sale. Yeah, it's cool that it has sound and lights up, but it just slid from the box, all finished... It's just not the same.