Very good choice IMO, a corn is much less 'fussy' than a ball python, even though much smaller (more fragile!) & more active (which they improve upon as they grow).
I have 3 caramel corns myself, & 2 Okeetees (currently). Corns make excellent pets- most have docile personalities, require far less heat in cage (I recommend good
air-flow as well), & if treated gently, are not biters at all, even when hungry. I like their adult size as well...welcome to "rat snakes".