It is a staggeringly great little machine. A lot of machine in a tight very attractive little package, just like I like it. Virtually no heat coming from it and silent operation. Runs a long time on a single charge. It looks fantastic and is the most fun notebook I have ever used. It handles everything I have thrown at it like any macbook I have owned (this is my 4th). The trackpad has some really neat new tricks and feels great. It sits very comfortable on my laptop lap cushion. The keyboard looks amazing at night and feels great, I type faster. I am more productive as I love using this notebook. The performance is great for 98% of everything most users will do. It is easy to take anywhere you need to go, light as a feather and packs down nice. The screen is super sharp and makes my late 2013 13" rMBP screen look fuzzy. 12" is just right, not to big and not to small. Makes the 13 rMBP look very outdated. Single port is just fine, if you need many ports to use your computer today, you are doing it all wrong. I do all my backups and any necessary restorations wirelessly. I use the cloud, not just Apple, but multiple clouds.