I had THE best piggie ever, Dawson, and yes I'm biased lol. He would scream when you opened the fridge (carrots magically appeared from there) and he gave kisses on your lips but didn't bite. I had him for probably 10 years (which is a lot for a gp). I would suggest unless you don't mind playing barber, getting a short-hair. Mine was a Peruvian so he had long hair and was a wiggleworm when it came to haircuts. He ran towards my stepsister and she thought he was a rat and she screamed and jumped on the bathroom counter lol. He just wanted to say hi and followed her.
Guinea pigs are smelly and messy, so their cages need cleaned a lot. They are such sweethearts though. Except one evil pig I had, she would attack and bite you when you even stuck your hand in to feed her, which I don't know why she did I never hurt her ever. I stuck with male gp's after that. They will need vitamin C added to their diet, as they cannot produce it on their own. Most commercial foods have some but not enough. Their teeth like rabbits continuously grow so there are times they may need to go to the vet and have them ground down.
2 dogs, Buddy and Diesel
5 Male Betta's, (Special) Ed, Mushu, Forrest Gump, Azeroth, and Onyx
12 Purple Pincher Hermit Crabs
2 Ecuadorian Hermit Crabs