A few notes on the Jetson Nano from the start:1. - The Jetson Nano, despite it's likeness to other Single Board Computers, it is categorically different than other SBCs with an ARM SoC. Indeed, the Jetson Nano is a System on Module, and is specifically built with Intelligent Systems design, Machine Learning, Robotics, etc., as its primary purpose.2. - The Jetson Nano, while quite capable, is not meant to be a set top box by any means - if that is what you are looking for, the Nvidia Shield TV is a rather well developed platform and would be significantly more satisfying for the home theatre setting and at a fairly similar price (the Shield comes w a Power Supply, Internal Flash Storage, WiFi and Bluetooth, a custom build of Android TV, etc.).I pre-ordered the Jetson Nano a few days after Nvidia announced its imminent release - after approx. 3wks or so, I finally received it. I had downloaded the Jetpack image file and flashed it to an SD card in anticipation of its arrival - so, setup was fast and simple. The Nano currently has Ubuntu as the primary OS, & while I am not a fan of Ubuntu, it is the cleanest OS I've encountered on an SBC, next to Raspbian and the Raspberry Pi. Compared to the Rock64, the Tritium H5, the Odroid XU4 etc., getting the Nano up and running whilst being fairly stable, the Nano is probably the easiest setup I've experienced in a while. Conversely, given the board's purpose, a ML learning platform, it has been a challenge for me for different reasons - but nothing I didn't expect.As for the board, it does not come with a power supply and it can accept power via micro-USB, through the carrier board pinouts, or through a barrel jack. It is meant to run at 10W in default mode, but is capable of a 5W mode. To operate the board at 10W, do not power the board via micro-USB. If you do and add peripherals, the board will crash rather easily. I used the same 5V/4A power supply I ordered for my Odroid XU4 and it works perfect (you will need a jumper - pictured - to select how you will power the board).The Nano requires a mSD card like most SBCs - a UHS-I, U3, Class 10 card is needed to get up and going properly; however, with 4 USB3 ports, I transferred my install to a spare SSD and it easily outperforms the mSD card. Also required - a WiFi/Bluetooth dongle or a PCIe Key A/E card, which can be installed under the module. Without, you will be forced to use the onboard Gigabit Ethernet connection.The pictures seem to make the board look somewhat large - and while it is bigger than the RPi standard, it is still fairly small. It's approx. the same length of an 2.5" SSD and slightly larger compared to the width of an SSD. The Module does have a large heat sink - again, it appears to be much larger than it actually is - the heatsink mounts a 40mm x 40mm fan for perspective.So, I know Nvidia has lost popularity over the last few years due to their GPUs; however, I have to admit, the Jetson Nano is a really great deal. Even if used as a standard SBC - the Nano is a great deal (the Shield is even better a deal for that though imo) compared to many other boards that cost the same or more. The benefit with the Nano is the access to the Jetson Package and a platform to learn and test the Cuda software. It will even have demos to see the Jetson's capabilities that come with the Ubuntu install.Again, these are just my first impressions of the board - compared to several other SBCs I own, I can already say the Nano handily bests all of them. The RPi3B+ with its community and price point is also a good deal, but it is an entirely different type of learning platform. I would say if the Nano has sparked your interest and you're not expecting an even better Shield TV...and if you are adept with Linux, then the Nano is a great deal. I would definitely recommend giving it a go.