Honestly, I do not like them much, I just use smaller chisel tips. They are for very cramped and small areas, usually not a problem for us.

My favorite tip is for Pace brand soldering stations. (One of the best and the price matches that ranking) The Miniwave tip. Is is a single beveled design, but it has a concave shaped bevel rather than just a flat bevel. It is very difficult to apply to much solder to a connection with that tip if you are following the rules. The concave shape actually holds onto the liquid solder and helps pull excess away.