Definitely a deal. Anyone run these? I've always felt like less than 4x doesn't actually allow you to see any better because of the decrease in how well you can see compared to your naked eyes. That was an experience from poor quality hunting scopes however so it may not apply here.
The main complaint to these is poor eye relief and for flip up magnifiers in general the fact that when it is not being used it's kind of awkwardly changing the weight of your weapon.