Absolutely love the Adidas T-23 treadmill. Fairly easy to assemble, check out the youtube video before you start. Running experience is fantastic,very smooth and very comfortable, not much movement at all even when running fast. The console+ app is surprisingly good with a great range of workouts. Bluetooth connectivity is via a dongle stick which connects almost instantly to your smartphone or tablet. Speakers on the hand rails are great so you can listen to your favourite music while you workout. I’ve had numerous sub standard treadmills which I didn’t like and ended up selling but that won’t be happening this time. I couldn’t recommend this treadmill enough.