I think it depends on your preference. The Bellaroo holds 50 bottles on the detachable case, and the Glamour carries 32. But if that's enough, you can always have a cube as well which holds 75 bottles. Both the Glamour and the Bellaroo holds a full Shellac kit (and we all know how big that lamp is!)with bottles standing upright, as well as a rolled up towel and small arm rest, couch roll, a roll of cotton pads, and foil wraps in the main compartment. The sides have elastic bands to hold files, brushes, and tools (but there's also little pockets in the bag's main compartment that can hold these as well). The mesh compartment on the sides are each big enough to hold either a full enhancement systems, manicure products (8 oz. bottle of hand soak, a small tub of hand scrub, some wooden spatulas, and mask), glitter pots, or whatever else fits in a small toiletry bag. With the Glamour, you can use either the top mesh compartment, or the ones on the front or back for heated hand mitts. With the Bellaroo, it would have to be the top as it doesn't have the big front and back panels.
For me, I prefer to carry as less as possible as I'm usually on foot, so the Bellaroo works for me. I just use the 4 zipper pockets in the front and back to hold my business cards, card reader, a few pinkie bottles, and adapter cords. If you're not carrying your kit very far (like from car to door) either would work, and you can get a cube for more polish bottle storage, or remove the foam inserts to add more things.