Are there any alternatives?

Yes. The Origin Neuron and Asus GA35 are the most direct competitors, but neither come with the unique cooling design HP is offering. The case, at least, is unique to HP.

　　

How long will it last?

HP says the Omen 45L should feel like a DIY PC. The PC uses off-the-shelf parts, so you can upgrade it as long as you want. HP is even selling the case alone, so you could use it indefinitely as long as you continue to upgrade the parts inside.

　　As configured, you can expect the machine to hold up in demanding games and productivity apps for around five years. Make a CPU or GPU swap, though, and you can exponentially increase that lifespan.

　　

Should you buy it?

Yes. In the crowded market of gaming desktops, the HP Omen 45L stands out as one of the best desktop PCs with its tool-less design, excellent cooling solution, and dedication to upgradability. Outside of DDR4 and a slight lack of ports, it’s the perfect gaming desktop.