Here's what I like about the product. 1. I got it relatively cheap. 2. It is nice and deep, allowing roots to grow downwards as they are intended to do. 3. I like the color and the fact that it is U.V. protected. Even so, I protect the side that gets hit by the afternoon sun by placing a white plastic tray in front of the planter on that particular side. That also helps keep the soil cooler, and the plants definitely like it.
Here's what I hate about it. 1. Because it's made for rails, the inside of the planter has the plastic partition going straight through the middle of the planter. Therefore, if you're planting a plant like a cucumber, you have to put the seeds to the side of the planter. But when the plant grows, although the roots can go deep, they are restricted too much on both sides of the planter (because of the partition down the center), and therefore the plant struggles to develop a good root system. In other words, don't use this for plants need a big root system, and love a lot of water. 2. I don't like that the description is not clear on what material, exactly, this planter is made from. I had to read through the Q & A section to find an answer from the seller. Is there a reason why this information cannot be disclosed fully? Or maybe the seller does not know the exact nature of the material? Or maybe they do know and they don't want to tell us? Could it be leaching poisonous materials into my edible plants? I'm not sure, and the seller should provide clarity on this, if they have not already done so. 3. It is not stable on all railings as claimed. On thin railings that the unit fits into, there is no way on earth that I feel comfortable securing the planter with the included two plastic clamping units, or whatever you call them. I tried, and promptly decided to leave the planter on the floor! In essence, this planter would be great for flowers or plants with smaller root systems, like peas or beans, and for positioning on thicker railings.

These rail planters are just the thing you need. I really dislike the ones that require a bracket to hang on outside of rail. This one fits your finished 2X4 rail with no adjustments but will not fit a larger rail. Come with adjusters to keep it tight on smaller rails. This is the one to have.

Worked great for railings. Because they are structural, I used 18' wide aluminum flashing under to protect the wood. Stuff seems to be growing in them..

I live in New Orleans and I have an urban veggie garden. I grow peppers in these and it is fabulous! I placed them on the rail right under my Topsy turkey and when I water the Topsy turkey tomatoes the water drips down and waters the peppers. Killing 2 birds with one stone as they say. My rail is a thin iron rail that is only an in his wide and the plant stays snuggly put! So practical for someone like me.

For your standard deck it did not fit the rail so I returned them. Great quality if the base opening had been wider to fit the rail.