Probably one of the best cages out there. Its sunken lock is way more practical and comfortable than the usual freely swinging padlock (the key isn't unique though, you might need a better replacement lock if the wearer can't be trusted). It's very comfortable to wear, and the way the top of the cage extends through the ring makes pullout impossible.
As the description mentions, it's difficult to clean inside it while wearing it, so you will have to remove it regularly.
It has some sharp edges, but nothing some careful scraping with a hobby knife or box cutter can't fix.
Be aware that it's tiny, if you're looking for a more 'average' size, check out The Beginner and The Dolphin, they have a very similar design.
Great value for money!
Despite a few minor issues, this is still one of the most comfortable cages I've worn.
It is not the best cage in terms of hygiene, meaning it is not recommended for long term wear without unlocking.
The edges on the rings are somewhat sharp when you first get them, but can be easily smoothed out with sand paper.
Overall, it is a light, comfortable cage recommended only for those on the smaller size ;)