owning an ifixit set myself, go for the ifixit. #IswearImnotshillingplsletmeGBAtempreviewthelatestone <3
I like this Bosch-branded one. It doesn't have a ton of bits, but really it has all the essentials I ever needed. It was less than 20 GBP for me at the hardware store. Probably not for everyone, though. Spoiler: Photo
I've got a Bosch one as well, but the ratchet got worn out very quickly and skips now. I've heard good things about the LTT precision screwdriver as well as the iFixit one.
iFixit here. I'm not convinced the alternatives are any worse, but apart from really long screw holes, it's been reliable.