Gamer - that's exactly the reason I don't mix my own. Too much hassle (for me - not you), etc. I would much rather do 5 pumps of each every day and be done. Much easier and much more in tune with my skill level (lol).
Each pump is squirting money out your wallet.. I agree all these premixed ferts like ada, seachem and pfertz are great and ultimately contain the same thing. Its the schedule you dose it at and the slight difference in concentration is what makes a difference.
Big difference between premixed and dry is the money and the time it will last.
Its like talking about diy co2 or pressurized. One just pays off more in the future..
Yet i myself still am on seachem. Running low on K and iron so will see what will be my choice in the near future. Would love to try the Pfertz but never know where my wallet will go.