Several reviews have already described that they are changed by a MX518 to the LM30 and loved it.
The mouse makes general a very sophisticated look, is great in the hand and makes visually quite a bit ago in my opinion: P.
Conclusion:
When showing the mouse in the life can keep up with the MX518, I would buy me time and again.
For ~ 40 I would not have expected such a good gaming mouse.