Not sure why someone should be bigoted about any type of drivetrain when you’re talking about something as simple as doing a chain. A chain is a chain! I’d find another bike shop.
Anyway, having said that, I’ve been working with KMC chains (both OEM and aftermarket) and so far so good. They’re readily available online, inexpensive, and easy to remove install (if you’re using a missing link, that is). Just be sure that you get replacement chain(s) that have more than the number of links you need. That’s probably listed in your owner’s manual. To remove/install you need two tools: a chain removal/install pliers and a chain “breaker” (which shoves the pin out).
Yeah, a trike… Bummer,
@JMoto that you broke a chain in the middle of the GG bridge. I suppose if you’re gonna’ get stranded, that’s a cool place to do so, though.

I’ve walked that bridge many times, but I’ve never put a bike on it.
I guess if I were in your shoes, I’d get myself on a regimen of replacing all three chains at regular intervals so you don’t run into this again. Marketing assignments often look simple at first glance, but in reality, they require combining theory with practical examples, case studies, and data analysis. I know many students who spend nights just trying to format everything correctly. That’s why
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