The Gitzo GM3340L Monopod is a classic aluminum Series 3 offering, made for use with larger gear such as a 300mm f/2.8 lens with SLR, flash bracket, etc. Fit and finish are exemplary, and you should expect nothing less from the industry's finest brand.
At its 5'1" maximum height, the GM3340L will put an SLR's viewfinder just at the eye level for the average user; if you're particularly tall or need to shoot above crowds, consider instead the GM3350XL model.
Gitzo's made changes to their aluminum, and it is now 30% lighter than previous Gitzo models of the same size. The 1.2mm thick tubing is finished in a brushed matte black, and it now sports Gitzo's "ALR" anti-rotation design for their locks so that you can deploy and retract the monopod quicker than ever.