Tell me about your experiences and what you like and don't about indoors you've been in.
Want to build one, so anything would be helpful... Especially size and pricing.
I want it to be warm in the winter and cool in the summer as well as have some seating. Any other neat add ons would be great to hear.
Want it big enough to set up barrels at a good length apart and be able to pick up speed and do some large fast circles.