Most EVO models are made to be hardwired. I may be mistaken but I believe the 1200W model is the only one that can (optionally) be purchased with builtin GFCI outlets instead of hardwiring. The rest are HW by default.It's just that I don't really think seriously about any inverter with NEMA sockets.
But to the broader point, while I do think there is some correlation between quality and builtin outlets, I think its at least as much if not more a indication of use-case and goals, as it is about quality. For a small or medium boat or van or even a small-medium UPS builtin outlets might be ideal and hardwiring would be excess, unnecessary, and more costly. For a whole home or cabin or larger mobile or marine electrical system hardwiring is a no brainer.
I have nothing bad to say about either Outback or Schnieder (The former is a brand I have a very good impression of and would seriously consider the Outback FX if it were a bit cheaper, the latter I dont know enough about to have a solid opinion, I have heard their firmware has been lacking in recent years, but that is third hand info). If we are talking hybrid inverters for medium to large systems, there are probably many options more capable (and more expensive) than a Samlex Evo or Victron Multi. This is not my area of interest, so not an area I have much exposure to. Sol-Ark and SMA would be two other well regarded names in this space I think? But now we are getting real pricey.
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