Is there a better alternative?

I’ve mentioned a couple of alternatives already, including the ThinkPad X1 Carbon and X1 Yoga (if you want a 2-in-1). Both of those are a little swankier, a little thinner and lighter, and they perform just as well. They also offer 4K display options (and likely better Full HD displays) that the T490 doesn’t enjoy.

　　The ThinkPad X1 Extreme is another option if you’re looking for crazy-fast components and superior expandability, but don’t forget about the Dell XPS 13 if you don’t need a full the 14 inches.

　　

How long will it last?

The ThinkPad T490 will last through the apocalypse, and still probably have a little charge left. It’s also well-equipped and connected, and if you wait for the 10th-gen CPU versions then you’ll be fully up to speed. You only get a year’s warranty, which is a bummer, but Lenovo is happy to sell you a longer one with great service and support to go with it.

　　

Should you buy it?

No, unless you care most about the keyboard or durability.