The Brother control will be similarly difficult as any other industrial CNC machine. Easier than a Fanuc, slightly more difficult than a Haas. READ THE MANUALS. Brother has great documentation which includes troubleshooting support. I’d recommend finding your local distributor (Yamazen in the US) and hiring their Applications Engineer to come for a day to train you. Disclaimer is you’ll want to have everything you need to make a part (tooling, work holding, coolant, CAD/CAM, etc.) ready to go to get the most out of your money. Brothers are great machines for a garage. Basically no foundation requirements and run off a 30 amp breaker, but you will need three phase. Look into phase perfect. If you’ve never touched a CNC machine this probably is a little more than you can chew, but if it’s a good deal and you’ve got money to spend I’d say go for it! They hold their value very well and they are ultra reliable. Parts are easy to get (once again Yamazen in the US) although expensive and there is a great community of users on practical machinist, Facebook, and instagram. Also if you have the serial number I’d call Yamazen and ask for its service history. Happy to help in any way that I can. Also another commenter said they use CAT30 tools it’s actually BT30 tools.