That set up will work ok for a starter kit. The di vessel is too small and will need changed every other day in a hard water area, every other 3 days in a soft water area. The sacktruck does not collapse so may not easily fit in a car or small van easily. The wheels are unimportant, they only need to be round in all honesty.
If you cant afford any better, then this will defo get you into WFP work cheaply until you can upgrade.
The backpack I would bet is a Shureflow by another name made in the same factory.