Excellent concept, mixed execution. There's no other game quite like it, but you have to 'forgive' many, many things about the game.
Networking gets nuts, the meta ends up all over the place, and at this point it feels like new weapons are intentionally broken for the first couple weeks and rebalanced later to entice people to buy them before they're balanced.

That being said, I'm never going to get tired of falling in with a massive tank column or infantry charge knowing that every single vehicle and soldier is an actual player. It's a tough game to get into, and the monetization can be rough, but I find it to be a special experience nonetheless.