As it seems in your OP, youre kinda used to a stock ROM and both of those are based on stock, with enhancements, and bloatware removed... MUCH FASTER and responsive.
So just start with one thing at a time - Recovery Time!!!
p.s. once youve installed your recovery, you should backup your current config before going to the next step - ROM!!! Practice good backup skills, and you'll limit your headaches considerably.