Probably better to have infallible teleportation if you want to travel.

But I like JB's answer: you can be comfortable and yet experience anything you ever wanted. For those who hate the difficulties of getting from point A to point Z, it'd be a godsend.

Superspeed (assuming you avoid the friction and breathing problems already mentioned) is tough because... suppose you're experiencing the world at an accelerated rate? Everything goes SLOWLY for you. It would be unbearable.

Telepathy is hard because it's bad enough having to listen to what people are willing to say (and I figure most folks exercise some restraint in that area, though not all). Can you imagine enduring what they're thinking in the privacy of their own brains?

This also basically predicted the effect of social media on the world, which would put it right in with the rest of Kornbluth's wheelhouse of predicting the social ills borne out of 20th Century trends. And also how actual, true, omniscient/objective knowledge is not something that leads to happiness. His "Gomez" (which I'd SWEAR Damon and Affleck must have read at some point) features a natively genius mathematician who works out the Unified Field Theorem and is so bummed out by it and its potential military application that he not only keeps the solution to himself but pretends to have somehow lost his mathematical abilities after losing his virginity.

*Co-authored with Frederik Pohl, but I recall Pohl giving most of the credit to Kornbluth for it. This was widely anthologized when I was a kid, but as far as I can tell, Kornbluth and all his work has fallen into obscurity. And I guess Pohl is right behind him.

Otherwise, it wouldn't be too long until I'm paste or the most famous person in the world (since a flying person seen in our reality every day).