Who has had good experiences with the Brawler series of carburetors?

If you can find that, it is the best plan. Some claim the ethanol mix has octane higher than the rating on the gas pump, just something to consider.
All I can get at the pump is ethanol infused, "up to 10%" is on the sticker.
If I cycle through the gas frequently enough, it seems fine except for faster degradation of the rubber sections of fuel line like near the tank, pump and carburetor.