The technology is interesting but honestly I don't recommend it to any early stage startup as it has a very high learning curve, high maintainability, limited visibility and so on. Maybe if you got to a stage that you have a problem that temporal can solve and a separate team that can keep it alive and debug it.
I get where you are coming from. However with their cloud offering you get to forget about some of the not easy parts of Temporal and just build something awesome while benefiting from all that temporal has to offer :)
I agree it might solve part of the problem but I wouldn't jump into this on day 1 of your startup as because its a framework/platform you will be betting your whole company on this. Im not saying its not good just giving a warning to very early stage startups to try and use something like this when they have a problem and not before.