You Lose your sense of smell (the worst sense anyway) You would lose your nostrils. Tail (like other items) would vary insize depending on person. But it would be similar to the sort of proportions of a Lima. The tail will have very good thumbs, and the tail its self would have good dexterity, like a limas tail No claws on hand, just normal nails. Yes you could lean on it, could even wipe your ass.