tools - What is the best type of magnifier to use for general electronics duties?

I am looking for a magnifier tool for an electronics workbench and was wondering what sort of product would be best.

The device must be an all-rounder capable of doing some SMT as well as through hole stuff.

I reckon that something like this would be about right, its a 1.75x 7' ring 28w magnifying lamp. Is this going to be a usefull addition to the bench?