It shows. The core design of the TE and SE are the same, just like d3v said. The top and bottom panels are both metal and have the same semi-universal mounting bracket and proper 30mm button holes (both of which the paewang doesn’t have) and the metal bottom plate. The PCB is the same in both the TE and SE (unless you include the Chun-Li TE, Madcatz updated the PS3 PCB on that version alone), and both are easy to swap out parts.
There are only real functional differences between the two, which are 1)What you get stock and 2)The physical size of them. The third difference is purely for aesthetic reasons, as when aided with plexi panels it is much easier to swap art on a TE than a SE.
The bigger size of the TE may be preferred for stability, however some prefer the smaller size of the SE for it’s portability.
Bottom line is the value of the SE varies, depending on how much you can get it for. But getting one and modding it for sure is an option to get a reliable stick, and shouldn’t be discounted just because of predetermined notions that “it’s cheap therefore it’s bad”. This especially applies to the TvC SE. A great stick, but overlooked because people refuse to have an open mind.
As for saying the SE looks like a “toy” while the TE looks professional, that may be true. However, judging from the templates/final designs of art I see posted here, 90% of people go out of their way to try to make their stick look as much like a toy as possible.
To be quite honest I think my SE looks more “professional” than most TEs posted here.