I've been playing disc golf for a few months and after going through a dozen different molds of discs, I think I've finally found the one I'd like to have multiples of. Einstein is extremely comfortable in hand and affords you a decent grip for cheap recycled plastic.  If you throw with succesful form, it will just carry and carry in a straight line before doing a little S line during the last 10% of its flight. The glow plastic is very bright and reliable for the price too. It hasn't necessarily held angles super well, but if you want something you can throw straight and far without using drivers, then you cannot do better than an Einstein. 

Plus, it's very cool that it's eco-friendly. The only knock i have is that it's not very durable, but hey - it's ethical plastic, so it's not like cycling through a bunch of DX discs. 

I'm always looking for a mid that I can comfortably throw forehand or backhand, and the Einstein is now one of them. It flips just a bit more than something like a Buzzz, but it has just as much carry. This would be a great disc for shorter tunnel shots. Many different shot shapes could be created with the Einstein. Great addition to anyones bag.