Everyone likes the Herdigm reamer; everyone hates the price.
All of the Chinese reamers I've used, especially the larger endpin reamers for bass, wind up being a tiny bit too short and narrow, which translates into a huge amount of frustration when you need a 32mm tapered hole and then you only get a 30mm max reamer size...
Both Metropolitain and Howard Core also sell a mid priced US made reamer for approx. $140; it is not always in their catalogue or website, so just ask over the telephone. Get that one.
j. www.condino.com www.kaybassrepair.com