i shall get in before someone else does,
some one will always be a clever whatsit and say use the club one, but since i am not apart of a club as the one local to me wants shooting into outerspace, twice as they are useless plonkers
i would suggest for a newbie you try for a manual every time, yes if you happen to have a grand spare then buy an stainless electric radial.
a manual plastic two frame extractor will do you perfectly fine for now. just dont waituntill you have 10 full supers to empty, pull two full cappped frames out once a week when you do your inspections and spin them and return them or get two spare frames to swap with.
a two frame extractor will take you once you have a rythym about 10 mins to uncap, spin and return to super two frames, many can do it a lot quick some people go slower, so a box of 11 frames in a super with tea breaks included is about an hour or so work
i have been helping a newbie out today with a plastic two frame and a four frame extractor and we have done 12 supers (9frames) and we have done the whole lot including filtering and bucket storage and 50 bottles in about 6 hours