For decks that don’t have other ways to ramp up their mana, such as Cultivate or Kodama’s Reach or creatures that can grab lands like Yavimaya Elder or Sakura-Tribe Elder, it’s not a terrible option. But it’s a bit too situational, in my opinion, to be reliable mana ramp. If you have two or three players at your table with two more lands than you – for example, in cases where you’re really getting mana screwed – then it’s a very good card. Having to exile it kind of stinks, but it’s understandable considering the very good value you can get out of this card.
Getting one basic land out of this honestly is perfectly fine. Two mana to put a basic land directly onto the field untapped is pretty solid. It’s worth playing, but to get full value out of it in multi-player, you have to time it just right. Even to ramp up with one untapped land to catch up to an opponent is easily worth the two mana to cast the Scope. It’s a pretty solid Commander card, if not the most consistent. Keeping up with land drops is even more important in Commander than other formats.
However, Surveyor’s Scope could now find a more consistent home, thanks to Kurkesh, Onakke Ancient.
Surveyor’s Scope is a decent card for an artifact deck, especially one that can make use of copying its ability. Obviously, it would be pretty ridiculous if it didn’t have to exile itself, so it’s not a card that can be “broken” so to speak. But, it can definitely provide great value, especially with its effect duplicated, so if you have a way to make its ability resolve twice at once, go ahead and give it a run!