The 3-blade is fine for the first flights. It will keep the plane from going too fast and will also help to slow it down for landing. It does break fairly easy so you need to get a spare. Do not use wood props while learning as they also break very easy. When you switch to 2-blade use Master Air Screw (MAS) initially as they are tough props too. eventually many change over to APC props for their efficiency and stiffness but they bugger up easily too so not advisable in the beginning IMO. I've been doing this 30 years off/on and still use MAS because I just like their appearance better.
BTW - when you change to 2-blade you will need to change spinners and most likely remove the flywheel for most brands of spinners to fit properly. Flywheel just pulls right off.