No, they suck. Buy something else for a first ski. They make a great second hobby ski.
They take on water. They all sink and a lot of times for no good reason. The 650 is often old and riddled with problems due to age. People don't keep them stock because they don't want to spend the money refreshing the 650 motor. The 750 motors bolt in but are hard to tune. You can't buy a 750 pipe that fits into the X2. The 650 pipes restrict the power. The waterbox loads up and hurts the bottom end. Pump tuning is annoying. Parts are almost impossible to find in new condition. No one can agree on how to tune a 750 x2 because everyone is frankensteining them together. When you need advice, you ask someone who has a ski "tuned awesome that hits like a gorilla on meth" and you spend a bunch of money copying them with not the same results, you finally meet them, ride their ski and it is a busted ass piece of poorly tuned poop.
Buy a superjet. Buy a B1. Buy a SXR or 750 sx. poop, buy a 650sx before a X2. I love my X2, but they are not a good first ski.
If he's dead set on it, let him buy one. Maybe he'll prove me wrong. I say if he does buy one, stick with a limited 650 so at least you can set it up properly.
There are tons and tons of X2 at free ride events so he'll meet plenty of new friends. I think there were more X2 on the beach than any other ski last year (I missed this year) at the daytona freeride. But they were on the beach. Like, all of them. I think I saw 2 in the water. They are a god danged wrench fest.