Well sometimes the vegetables grow into a huge size and start eating furniture.
No but the downside is that you need to have good fertilizer suiting hydroponic systems, as you can't add all kinds of fertilizers and as there is no soil, there is no "natural" nutrients.
However the positive side is, this is far more effective, especially if you can have the pH at optimal level. With soil, it's more difficult to control all the conditions.
Effective as in? you get faster and more yield?
I have no issues with furniture , for me the ultimate aim is too have healthier vegetables to consume.
It's faster, harder, SCOOTER!
Wait, I mean it's growing faster and giving more yield. It's very efficient with small space, as you can make much smaller systems too if required, but still giving the plant a healthy life.