The worst person to ask is someone who has a vested interest.
I've run the GS buggy and there wasn't anything very bad about the car, but there wasn't anything great about it either. It performed and lasted as well as any other mid to entry level buggy. It didn't handle especially well when compared to high-end race cars, it wasn't consistent and nothing about the quality stands out compared to all the other cars that can be had for the same or less money. It sounds like you have your mind made up, so good luck with your car and I hope it doesn't disappoint you like it did me. You asked for opinions so I offered.