I initially decided to get a Unii Palette for going travelling to Australia last year because, although I was taking a full MAC Palette with me in my case, I needed to take just a few shadows and a blusher with me en route to fix my makeup on the plane so therefore the Unii looked perfect due to it being nice and compact and having a mirror included in the lid. Needless to say it's been around the world with me and back and it's probably taken quite a battering along the way too so I'm pleased to say I can give a very honest opinion of how it upholds and also how it compares to a couple of the other popular palettes.
First off the pros: It's compact so great for throwing in a handbag, it has a large mirror in the lid so again great for travelling with, the magnetized base could be a bit stronger but it's still quite good, the aesthetic design is great - you can choose from several colours and from the outside I think it looks like a piece of technological equipment!
The cons: Unfortunately I found that there is too much space between the eyeshadows and the lid when the lid is closed. This means that the shadows can rattle around and if it's dropped, since the shadows are not snug against the lid, they can break easily from the impact (I lost a few MAC eyeshadows and a NARS blush due to this!). Another con is that it's not a palette that would be suited to make-up artists. Due to the reason above it more than likely would not withstand rattling around a train case and it's compact size also means it wouldn't hold enough eyeshadows/blushers for those who may want to use it on a professional basis.
Comparison to the MAC and Z Palettes: As you can see it's smaller than both the MAC and Z Palettes which can be either a good or bad thing depending on what you want to use it for. It has a mirror in the lid which neither of the other two palettes have which is good for personal use but a bit redundant for professional use. The space between the eyeshadows and the lid when closed is greater in the Unii than in either of the others so unfortunately for the contents of the Unii they will rattle around and become dislodged more and may not withstand being dropped. I have dropped both the MAC and Z Palettes without much of a problem (the Z Palette coming out on top with zero products ever being broken!). The Unii is the most expensive out of the three, the MAC being the least expensive.
Overall it's a nice palette for personal use. I like its appearance and it's useful for going away on a weekend break. I also like it for storing my most used eyeshadows so that I have them all in one place if I'm in a hurry in the mornings. However it's not one I'd recommend for professional use or for the make-up addicts who need mass storage for their excessive amount of depots!
I bought this from uniicometics.com for $29 (about €23).