which test kits to buy?

[dcw1sfu]

I have API, Elos, Red Sea and Saliferet test kits. Ive been most happy with saliferet kits. When i first got the Red Sea I thought it was great and loved the look of the kit but then found out the magnesium was actually way off on the kit and was actually a bad batch number. Elos kits are really nice as well but I have still found the most consistant results with Saliferet kits and they are easy to use as well.