After doing some research on various treadmills I opted for this NordicTrack. The descriptions seemed to say that it came with a group of programs and had great support. Not so! It had extremely basic built-in manual operations, however, if you want the implied included programs you get to pay as much as $40 a month. Yes, it has Bluetooth, but only available for their expensive app. Yes, it will play music but only through the outdated 3.5mm jack on the control panel unless you opt in to the app. They offer no app discounts for AARP or United Health members. The support is neither sympathetic nor competent. Several attempts to find out about the things I just mentioned were rebuffed or not answered at all. Don't expect respect from this respected brand. To try and overcome the lack of playing music through built-in Bluetooth I purchased a Bluetooth interface and a cord with 3.5mm plugs on both ends so I could connect to the 3.5 mm jack. Though it finally did let me play my music from my iPhone 16, it took some finessing to use it with the start-stop feature of their manual app for iPhone. Eventually, my daughter gave me her old iPod mini (2005) that had a 3.5 mm jack and music from that era. No conflict there except I wasn't particularly enamored of the music on the iPod, but it was music. BTW, it appears that their $40 a month app only plays music from 4 sources, none of which I subscribe to. If I was to opt in to their $40 a month plan, I would still need to subscribe to another plan to play music via their method. Seems like a Ponzi scheme to me.
Putting the treadmill together was a project that took half an afternoon and part of the next morning. Although the instructions are ok, there are a few things that are not clear. Routing the cable out of the top of the right support was not defined. There are two possible ways to do it but neither the description nor the pictures showed which route was the correct one. They tell you that a second person is needed for the last two assembly operations. I was able to do that without another person except for installing the damper/release tube. That did require another person to hold the treadmill up while attaching the lower bolt.
The construction does seem to be solid in the NordicTrack tradition and it is fairly quiet to operate. It came with all the tools required for assembly and parts were clearly labeled.
So, here's my final word: If you don't mind having to spend $40 a month for the only app that will work with this treadmill and you don't care about the poor support, you can buy this well-built treadmill. If, you take offense paying top dollar for the treadmill, only to find that you must pay a monthly fee to use it for its claimed features, skip this one.