I just tested out the first test kit. (KH, Ca, Mg)
My impressions. The instructions were great, the equipment is also very good (like the small tips for the end of the titrator syringes fit snugly and are air tight, unlike the ones in my stock test kits). The graduation on them is very good and easy to read at even between 0.01ml hash marks. Reagents are stamped with the lot code they came from and what the expiration date for the kit is. The kit has seperate glass test vials for each test as well as seperate titration syringes and tips which are color coded so you know which one to use with which test. There are a significant amount of reagents, so 60-75 tests before you need a refill.
Since it was my 1st time using them it took me about 10 mins to test those three params, but now that I know the drill I am sure it will be faster in the future.
Also there are great videos explaining how to use these tests on youtube that RedSea posted. Very helpful. Seeing it done and reading about how it should be done are not always the same thing.
Over all, I am very impressed so far.
For the record my DK was 9.1 (still working to raise that up a bit), Ca was 500, and mg was about 1500.
Chris