The guys before me are offering excellent advice and I strongly suggest keeping it simple and build confidence through experience.
I switched to pressure brewing with a FermZilla All-Rounder and have yet to have anything but an excellent batch. (That's 42 batches so far, btw.) Yes you can pitch with dry yeast and don't need to worry about aerating the wort, but I still do a yeast starter anyway, and it's a MUST for heavy beers and lagers unless you want to go broke buying yeast packets.
If it helps, here's my simple process:
1. Pour cooled room-temp wort into the FermZilla. My aeration is simply pouring the wort from on high, getting plenty of splashing & bubbling.
2. Pour in my yeast starter.
3. Attach spunding valve to the "gas in" port, set for 15 PSI, screw down the lid, then monitor periodically.
That's it...nothing special, no oxygen aeration, perfect beer every time. I do 6gal batches over 2 or 3 successive weekends. Before each one, I xfer the previous batch to kegs/bottles, pour in the new wort right atop the yeast remaining from the previous batch, and away she goes. I've never had a batch go bad and every batch is bubbling like a son-of-a-gun w/in 3-6 hours. I prevent over-foaming by adding 5 drops of anti-foaming oil (Patco 376 which is vegetable-oil-based, no silicone), same as when my wort is approaching its boiling point. (In fact, I never get more than 1" of krausen during fermentation.) I pressure xfer with normally:
1. Purge a sanitizer-filled keg w/ 15PSI from my CO2 tank. (Now both the keg and fermenter are pressure-balanced at 15PSI.)
2. Connect the FermZilla beer-out to the beer-out on the keg so it'll fill from bottom-up...less foaming that way.
3. Switch the keg's gas line to my FermZilla (after removing the spunding valve) to the CO2 tank.
4. Attach a Kegland Flow Stopper and spunding valve on the keg's gas-in port, setting the spunding valve to 20PSI. (This prevents the beer from flowing yet.)
5. Set the CO2 tank to about 17PSI, attach to the FermZilla, then back off the keg's spunding valve just enough to get beer flowing at a SLOW rate into the keg. When the keg's full, the Flow Stopper blocks beer flowing, and then I disconnect my lines.
6. I always get a gallon or so left in the FermZilla, so I bottle this using a counter-pressure filler.
Oh, and to make everything easy, I use only Duotight 3/8" connectors and lines. No spills, no leaks, easy peezy.
I'm not saying my method is best (especially as it probably isn't even close), but it's good enough for me and I have fun. I love tinkering, making things, and learning from my mistakes...so I don't mind making them. Much.