We have two of these seats and have zero complaints. They have fit in an Audi A3 (seat will have to be pushed up a bit), a 2008 Nissan Rogue, and a Lincoln MKX with zero problems. Check out the Car Seat Lady's review. (Does not come with a cup holder - we purchased this separately and our daughter likes it so far)

Product did not work on my 2012 Ford Fusion, even though it is listed as an applicable vehicle in the item description.Only putting one star because zero stars is not an option. Buyer beware, listing of working vehicle models is not accurate.

Great book displaying some of the earlier projects of the firm. This book is very diagrammatic and lacks a full understanding of some of the projects but after all that is the way BIG operates. Some low quality photos but overall a good resource. I bought this book in 2012 for $20 though and have no idea why it's going for north of $500 now.

I can take it ANY where and because it can fast charge my phone I never have to worry about running low on battery again.

My wife and I have used this on knee pain and numbness of hands on a few occasions and it's now sitting in a box somewhere. It wouldn't be sitting in a box somewhere if we felt it was effective. It gets warm like a heating pad... other than that I could see no benefit from the lights.