I haven't ordered materials online from them, although the website is clean and their 1:43rd footprint within the scene a longstanding one. If there were issues in relation to poor reputation, I suspect such would have surfaced long ago. The models I've seen displayed at shows impress, with brief notes of such to follow.
Many of the Trans Am tools employed are now quite old, although for many years indeed such constituted the only game in town but for larger unassembled plastic kits and independently pursued kit mods. The finish quality of the models is high, whereas odd to note in a sense that 1:43rd hand-built factory releases are commonly produced to a standard that well exceeds what is seen in 1:18th. I would recommend that modest caution be displayed in relation to the secondhand market for I'm not sure how sensitive the decals and artwork is to sunlight, etc., although recent builds based upon the old tools shouldn't worry you. Some fine photo-etch work won't respond well to handling, hence wise it is to keep the model within the display case and atop the factory plinth the item is delivered upon.
Kits exist of the same range, but personally I'd recommend spending the money for a high-quality factory build and simply honor the expense required to afford what is on offer ready-made. These are jewel-like, and hardly the stuff of mindless mass production absent sensitivity to the topic. One word of caution though! I have vague memories of the '70 Penske Donohue Javelin coming through factory finished sporting the wrong shade of blue (too dark I believe - and a metallic finish too!), so in this discreet albeit important respect one is forced to consider the building of 1:43rd kit so that this detail might be attended to.
I suspect as the new-tool Chinese-manufactured 1:43rd SCCA Trans Am topics continue to emerge on the market that the demand for the older tools will slacken still further, but also know that these earlier tools are in the main not hateful even as they are (and always were) a bit pricey. Some topics likely will not be revisited, hence for some items, perhaps best it is to celebrate that a firm has decided to replicate the topic and spend the money if so-moved. Kind regards...