Yeah this is a super underrated comment. My wife basically forced me to start using transfer pipettes when she first saw me using measuring cups. Honestly, she’s given me a lot of irreplaceable “lab knowledge” for my grows over the years. I’m lucky she’s shown interest.
If it was me, I’d probably go for the bigger model, the TSW2000 but overall I’ve heard good things about Mars Hydro. I personally have had nothing but good experiences with Horticulture Lighting Group. I’m saving for the newer models but I have a handful of the little 100watt boards that I can move around easily. I am currently running 2 little 100watt boards in a 2x4 tent.