I've got a Fetch Mighty in the house, and a Fetch Mini, in the shed> I mainly use it for FTA, and sometimes catchup TV. The good thing about the mini in the shed is that I can set up recordings or watch stuff I've recorded when I'm in the shed, having a beer or two.
Can record up to two progs on 2 channel sets, and another one from another channel set while watching a different one, or 2 programs from 3 channel sets while watching something I have already recorded. I think that's how it works anyway, but I have rarely seen a situation where I have had recording conflicts due to too many programmed recordings.
One thing that does annoy me a little is that the TV guide is from the Fetch website, not embedded data from the channels. And they don't tell you which release of the movie, or who the actors are. This means that sometimes you end up recording something that is the original version, and not the newer version you hoped it was. They seem to be pretty accurate for start finish times, except if the show you want to record comes after "The Block" or football, and sometimes channel 7 will run over too, but that usually doesn't affect me anyway.
A good thing is you can schedule complete series for recording, so you don't miss an episode if you are out and don't get to set up recordings. I think the app may allow you to set recordings while you aren't home, but I have never used it. Not sure on that though.
I picked up the mini from Gumtree for $50.00. But if you go that way, you have to make sure the Fetch isn't locked to a provider (or if it is locked, it's the same provider you have), and that the owner has cancelled their Fetch account for that box. Even if they didn't rent movies or subscribe to any channels (Netflix, Stan or packages etc), they still would have had to set up an account.
Bottom line is, it's the best TV recorder I've ever owned, and Catchup is pretty good too.