I dunno...it gets you into a larger, round shaped reflector. If you put a diffuser over the front, it might be pretty good. I also see they offer a three-grid set, plus a diffuser, and some colored filters, as a $78 accessory set. I actually think the accessory set would be worth having. A grid set is reallllllly handy as a light-restricting tool, and three grids, plus the diffuser, and the filters for $78 is about the going market price for a three-grid set...I mean, it's "at least reasonable".
The snoot I am not so sold on, but the grids, and the neutral diffuser, YES, I think those would be good accessories to have, especially if you had like three flashes, and three of the identical reflectors. Grids give you a way to put a flash close to where you want it, and to keep it contained, so the flash doesn't blast all over the place. A reflector + grid combo is one thing, but when you ADD A DIFFUSER in front of the combination, it becomes an even better, easier-to-use, softer, less harsh, less-raw lighting tool. Many people have used smaller 5,6,7,8 inch reflectors with grids, but most have not tried adding the diffuser in front of the grid. it's just soooooo much easier to control, and the light is not so, well, so "raw". I actually think this setup is worth the slightly over $100 for the reflector and discs, and then the $78 accessory kit.