I guess if you are in the city or in an apartment and cant mix everything up out in the open it might become troublesome. But we only transplanted once and sure theres a little mess but nothing major. As far as nutes its all liquid so you just mix it in gal jugs or like we do in a 5gal gas can then pour it into jugs. This way is MUCH easier cause you can test the ph and everything all at once instead of each jug like we were doing before. But yeah, dont mix stuff on the floor man. At least get a garbage bag or something and mix it in there. I can just see you having all kinds of dirt on the floor mixing it, haha too funny. But dont worry man, this is your first time and mine too. But honestly i think its a better idea to get to know how this stuff works before going hydro. I mean just think, with hydro you are going to have to empty a big resevoir like every 2 weeks, you got all those pumps and stuff that can go out, root rot is more likely, etc etc etc. Each has their pros and cons and one isnt better than the other. As for the guy that used foxfarm soil you are damn right thats good stuff! We use the ocean forest mix and my god this stuff is rich. Its so dark and fluffy. It has EVERYTHING in it. Im pretty convinced you could just use this soil and no nutes at all and get impressive results. Anyways, let us know how it goes man. Im sure youll get it figured out and get some huge buds. I hope so!