Comfort and handling is subjective, of course, but these grips are cheap enough that it isn't difficult to try them out. And one's feelings can change over time: at first I hated very the idea of grips and refused to use them with any camera. But both my Mamiya C220/330 and Hasselblads came with grips: eventually I fished them out of storage to play with, and discovered they actually are nice to use in some configurations for some types of shooting. Grips add bulk and weight, so I don't want them all the time, but have increasingly found them useful. A grip seems counterintuitive with WLF until you try it awhile. I have jittery hands, so a side grip helps me stabilize cameras with WLF enough to get a more steady view thru the finder (not to mention aligning verticals in the shot). With the Hasselblad, a side grip also gives me more leverage to turn the ridiculously heavy focus ring on some lenses. With the Mamiya TLRs, the side grip makes the whole thing feel less top-heavy and awkward handheld, and makes my right hand feel a bit freer and more responsive on the focus knob, shutter release (and shutter cock with the manual 220f). Shopping Mamiya grips can be tricky, as there were a great many variations (and each feels different).