Right angles are great. All the value here for me is in the solid right angles. The supplied clamping method is one of several clamping methods suitable for attaching the bracket. The included clips work best when combined with a second set of clips on the other side of the box. This is the best way to keep furniture secure for stapling/drilling. I typically use 6" ratchet clamps and/or rubber C clamps to secure the square and avoid visible "clamp marks" on both hardwood and softwood when finishing. The supplied clamps are too easy to tighten. The clamping mechanism is ideal for reuse in other clamping devices. I like her. As advertised. As expected.