In my opinion (which probably isn't worth much) the HP Combi Plan tank is good. I've not had any problem with mine.
Enjoy your new LF gear...it's a lot of fun. I took the below picture in Auckland a few days ago, and developed it today (in the HP Combiplan). Still need to do some post processing. Koday TMax 400 (TMY) developed in Ilford LC-29 (the only developer I can find in New Zealand) for 5.5 minutes. Chamonix 45-1n, Rodenstock 115mm
Jeff