I've just signed up (after reading this message). My hope is that as a paid service effort will be made to make it reliable (through development, configuration, whatever). Having some users paying for it should hopefully make issues much more visible (through complaints to support if nothing else!).

That's a bummer. I was excited about running a home instance to bridge my (many) chat platforms. To me the point of such a thing is you can set it up and mostly leave it alone, so if it needs frequent fiddling it is mostly not fit for purpose.

Well, try it. It's a paid service so you might get some support, or maybe I'm plain unlucky.

I cannot use this service in good conscience because it touches the US, the fact that they were willing to launch a paid service made me wonder about the viability of the components.

I've had the opposite experience. I've run a signal bridge for ~6 months with 0 interaction at all from me. This is the mautrix signal bridge, pantalaimon, and Synapse.

Yes this has been my experience too. The WhatsApp bridge I used had been pretty unstable. I thought it might be a configuration issue from my side.