Okay, so I've been using this ab wheel for about 2 weeks now and WOW - it's actually fun?! Never thought I'd say that about an ab workout.
The elbow support is a game changer. No more wrist pain like with traditional ab wheels. The rebound feature feels like having a personal trainer gently pulling you back when your form starts slipping.
Assembly took like 3 minutes (they include the screwdriver - nice touch). The included jump rope is decent quality too - I use it for warmups before my ab sessions.
Only minor complaint: the rebound is always on. Would be cool if you could adjust the resistance level. But honestly, even as-is, I'm feeling the burn after just 10 reps.
Pro tip: Use it on carpet if you're worried about floor scratches (though the rubber coating seems protective). My downstairs neighbor hasn't complained about noise either!
For $40-ish? Absolute steal compared to gym memberships. My abs haven't looked this good since... well, ever.