I have been using this system for a couple years as well as a normal garden in the soil.
This year everything will be in these raised beds set on concrete blocks.
You have the expense of filling them the first time and then you are finished with a lot of expenses.
No rot tilling the soil is light and fluffy and stays that way,
no weeding are hoeing , the only weeds you will have are blown in and you just pull the up easily,plus being raised and clear of the ground you dont have them coming up from the ground into your beds.
Insect and disease control, the concrete blocks and being off the ground stop most of the insects from getting in your beds. You have made your own soil so it is pretty well disease free
Contray to popular beliefs , setting on the ground actually siphon's water away from your raised beds if the are sitting on the ground. so the mix in the boxes has vermiculite in it so it holds water well, you cant flood it and drown the plants the way they are set up but you use a lot less water.
Jack I had veges 12 months out of the last year with this system , and I will have a lot more this coming year, It is easy to make a pvc frames covered with plastic that attaches to these boxes if you have a hard freeze.
It is cheaper in the long run, no mechanical machines needed to till the ground,the soil stays light and fluffy , you can turn it over with your bare hand.
Very little weeding
No bending over like a regular garden
No fertilizer , when you replant just ad a trowel of compost per sq surface area mix it in with your fingers
Less water, you are not watering the ground between rows.
It is a smaller area that can be controlled , so it can be used extensively
Insect and weed problem minimized
I like this system and I like food that is all organic .
Maybe that answered some of the questions.
Ron