Not entirely true, wifi on the wrong chipset was a nightmare till just a few years ago, and even on the right chipset (Intel) there were problems as recently as

Not entirely true, wifi on the wrong chipset was a nightmare till just a few years ago, and even on the right chipset (Intel) there were problems as recently as Oneiric. (I installed it and my Intel wifi throughput went down to .5kb/s, there was an active and angry Launchpad issue about it.)