In my case I bought the kits for the R SMD, the rest was nice to have...
After playing a bit with it, it's a slow process to get the SMD part out:
1- pick out the little container
2- unscrew the container cap
3- place the tweezer inside and get the SMD part
4- screw the container back (hoping it did not tilt/fall down on table before that)
5- place the container back in the hole in the fixture.
with proper SMD containers:
you need just 3 steps:
1- open the lid
2- place the tweezer inside and get the SMD part
3- close the lid
Plus it's much better to organise the kits/components (Lego brick build concept) AND you can staple the kits on top of the others without worrying that any containers could fall out the fixture.
Anyway that's my personal taste...
If you want the empty containers + fixtures I can sell them to you... 10 Euros for TWO + SHIPPING??? OBO send me a PM