I always found the Salifert kits to be a pain, but accurate. I have been using Elos which I am very impressed with. The Mag test is probably the most comlex, but really only about 3 minutes to complete. The Alk is so simple my 11 year old tests that every other day or so. The only complaint with the Alk test is that it only tests to .5 dKH. I'm not not that concerned with much of anything closer, but some do.