The last resistance bands I owned snapped mid-set. These held up through two months of travel and home workouts.
If you want one kit that covers arms and legs at home and travels to gymless stays, this is a durable, well-built pick that outlasted the flimsy bands I had before. Buy it if you value variety of resistance and a sturdier build than the flimsy bands that snapped on me before; skip it if you're packing carry-on and trying to travel light, or if you want a true free-weight feel rather than progressive tension.