Are there any alternatives?

Yes. The main alternatives are the Logitech G915 and Logitech MX Mechanical, both of which come with low-profile mechanical switches. They’re cheaper, too, though the MX Mechanical is more focused on typing than gaming.

　　If you venture out a bit, the Keychron K3 is a low-profile mechanical keyboard for around $90, and you can even grab it with hot-swappable optical switches. Corsair offers its K70 RGB low-profile, as well, though it’s expensive and limited to a wire.

　　

How long will it last?

Razer says its key switches will last for 70 million keystrokes, so you should be able to use the DeathStalker V2 Pro for a decade or more depending on how much you type.

　　

Should you buy it?

At its retail price, no. Although the DeathStalker V2 Pro is a great gaming keyboard, the Logitech G915 often sells for $30 to $50 less, and it comes with a tactile switch option.