I'm at that age where sometimes my glasses don't help and I need a little extra site. Keep one at my desk for some of those small typed papers. May need to get another one to have handy.
2x magnification is acceptable for average use when you don't want to hold the glass close to your work. However 2.5x or 3x magnification is highly desirable when you get older or have a cataract or two to deal with while reading. True you must hold the glass closer and limit the field of view but that's the price you pay -- it's plain old physics.