I've been using a very close variant of the topic filter for awhile now, the Bosch Premium 3323. My results have been much the same as topic. I've posted several c&p. Got an excellent deal on 6 from RA, they all arrived in great shape, each individually boxed inside shipping box. Ordered 6 more not long after, so set for awhile. Unfortunately, it seems either M&H or Bosch decided to move production to Mexico recently. The one anecdote I saw looked like crap as compared to the US made. I'm not sure who is making them now. The one difference between topic and PL14610 is sealing gasket, the latter uses and orange PTFE coated sealing gasket. No significant difference imo.
Anyway, the CQ looks excellent. Thanks for c&p.