I own/have owned lots of niche vehicles (stupid italy with your shitty but delightful cars!!), and for the most parts vendors of aftermarket parts generally suck. My experience with Whoosh has been quite good, and with everyone so apt to complain about things, I think it's good to also give positive credit where it's due. This is not a requested or paid endorsement, I just felt like giving some credit as someone that runs a word-of-mouth business myself. I have ordered things 9 times, with one exception its always been great. The only time there was an error I do not fault Ron for not fixing it, because I didn't bother to open the box for many months after receipt and I was well beyond the exchange window. It would have been unreasonable to expect him to take the part back; that was my first order, and the way it was handled resulted in 8 more orders. Also it was an easy part to sell to someone else 
- Lots of products available at multiple price points. If I want to be cheap, I can, if I am feeling saucy, he can accommodate that too.
- Good, clear product descriptions with reviews by real people. I like that some of the reviews are clearly forum members here, it adds credibility.
- Ron is not shy about telling me I want to do/already did/am asking for something stupid. (I think he told me a few times on the forum to buy a thermal exhaust before I spent a few grand building... a thermal exhaust).
- When I ask a question, I get a quick response. Not always the response I want, but a substantive response nonetheless.
- Lots of products available at multiple price points. If I want to be cheap, I can, if I am feeling saucy, he can accommodate that too.
- Good, clear product descriptions with reviews by real people. I like that some of the reviews are clearly forum members here, it adds credibility.
- Ron is not shy about telling me I want to do/already did/am asking for something stupid. (I think he told me a few times on the forum to buy a thermal exhaust before I spent a few grand building... a thermal exhaust).
- When I ask a question, I get a quick response. Not always the response I want, but a substantive response nonetheless.