I had really high hopes for this box but am finding it quite challenging to use. The biggest issue I have is air flow. With the door closed and the lights on it will not stay cool. Temps in the box soar to 90 degrees plus. When the lights are off temp is no problem. I called tech support about the temp issue and was advised to BUY an additional fan and point it towards the exhaust fan in the upper left of the box. I'm skeptical about this solution as I think it will only recirculate the warm air in the box. I do have a small desk fan that I can place in there to try and help the exhaust fan. So I will see how that plays out. In my opinion I would have to keep my house at about 60 to 65 degrees for the box to stay cool with the door closed and lights on. So for those of us who have to grow in our living space, that's not practical. Even though I'm using my box in a spare room I can only adjust the temp in that room only so much. The best I can do is about 75 degrees. But that is too warm. You will struggle trying to keep the water/solution under 70 degrees. I still haven’t gotten that figured out yet. I wish I had a basement as I'm sure this would help greatly.
I strongly advise inspecting the box thoroughly. The folks who assemble these boxes are not carpenters. I had to place extra screws in some places to tighten things up. Plus there are some light leaks. But I was easily able to address that. The latches that keep the box closed are cheap quality. About once a week I have to squeeze the metal loops back together because they keep spreading out. I myself am not a carpenter either but if you are, you can build your own box and buy the individual parts for less than half the price. For $1000 I was expecting better quality. But I figure with the cost of bud north of $300/oz, if I can get about 4 ozs plus I will have made my investment back. They say you can get 2-3 pounds of dried plant material from the box. I find that overly optimistic unless they're counting leaf and stem. I don't see how you're going to get 2-3 pounds of bud. The air pump is kind of noisy as it rattles against the box. I fixed that by attaching foam strips to the back of the air pump and remounting. I would also advise keeping an eye on your roots. Some of the longer roots are getting sucked into the water pump.
I am limited in the space I have to grow. This box seemed to be a great option for limited space. If I had more space I would have gone with a tent instead. I also recommend germinating your seeds in water. Once the seed case cracks open and the tap root shows then put the seeds in the starter plugs under a light and wait for the seeds to sprout. Then place them in the box. On a positive note they do answer the phone when you call. Which is rare these days. Most times you get voice mail. I am feeling some buyers remorse because this is not quite the "turn key" product they advertise. But if I can get several ozs out of the thing on my first grow, I will feel better about the purchase. Believe me I truly want this thing to work well and be productive. The best thing this box could be used for it cloning.

I purchased the Grandma 6.0, it was shipped out early and arrived quicker than anticipated. I would recommend Dealzer, excellent experience.

Arrived in perfect shape. Plug and play. Looking forward to the harvest. Thanks for a great product.