I have about a dozen of them and like them all.
I like my Systems the most, and I'm still in awe of how well my modest standard 31 performs. I love the roomy Sherlocks (yes, even the Original, infamous for its bowl getting warmer than it should, as it hugs my beloved Westminster with passion and produces that exquisite smoke, surprisingly cool). I really like my quirky ones - a B11 Fermoy most people wouldn't find attractive, a Harp 408 that wants to be an author but is more of a blogger, my meer-lined that lets me experiment new blends with no ghosting, and my more expensive Deluxes that just look great and perform their job with stoic precision. Even my modest ones, a Killarney that is dedicated to Dunhill Flake, and a Green St Patrick's that only sees Uni and Irish flakes, are very well regarded. And yes, cleaning systems and Sherlocks takes an extra step. I don't mind.
I know I'm a Pete fan. I can tell because when people say it's a bad brand with quality issues I can't ignore the comment. And I'm partial I'm sure. Maybe it's the memories of having picked each one over the years, or For how easy it is to start a Pete-centric conversation with a stranger at the pipe club. Maybe I'm wrong. But if they truly have quality issues, I've dodged them all and have the Luck o' the Irish on my side, as all my Petes were brand new when bought.
Lucky me.