Let me start by saying, I was skeptical at first. A plank trainer that turns exercise into a game? Sounds too good to be true. But after using the Stealth Core Deluxe Trainer for a month, I'm completely sold.

The setup is straightforward - assemble the base (takes 2 minutes max), download the free app, and place your phone on the holder. The moment you start your first game, you realize this isn't just another fitness gimmick. The way it translates your core movements into gameplay is genuinely innovative.

What surprised me most was how effective it is. Traditional planks always bored me after 30 seconds, but with games like 'Space Escape', I regularly hit 3-minute sessions without realizing it. The 360-degree motion forces engagement from every angle - I can actually feel my lower abs working for once!

The build quality deserves mention too. Despite some reviews calling it 'cheap-looking', mine has held up perfectly through daily use. The non-slip base stays put even during intense sessions, and the phone holder fits my large smartphone securely.

Now for some real talk - this won't replace your full workout routine. But as a core-specific tool? It's brilliant. I keep mine by my bed and do quick sessions morning and night. After just three weeks, my posture has noticeably improved and those elusive ab lines are starting to appear.

The app could use more game variety (only 4 free ones), but they're engaging enough to keep workouts fresh. My only real complaint? The size - it's not exactly compact when not in use.

If you hate traditional ab workouts but want core strength, this delivers results while actually being fun. At $100, it's an investment that pays off if you use it consistently - which, thanks to the gaming aspect, you probably will.