I'm very pleased with my recent purchase of the Willow greenhouse!
Adding a greenhouse to my garden had been on my to-do list for quite a while and I am really happy with my decision to purchase this brand. I assembled this mostly solo, only needing to call upon my partner for a couple of steps where his height or extra set of hands were crucial. I found the instructions easy to follow, and the pieces well labeled, with almost all holes pre-drilled and ready to go. The completed greenhouse is not only beautiful to look at, but the wood pieces, panels, and parts all seem to be high quality.
Are there a lot of parts? Yes. Will it take a good amount of time to complete? Yes. Is it worth it? Absolutely!
My foundation took me at least as long as building the greenhouse did, because I choose to go with pavers. Gravel would have been immensely easier, but I wouldn't recommend it based on friends who have done this with their greenhouses. A poured concrete slab would have probably been the best option, and what I would do if I did it all again.
I would recommend maybe 4 days to build it if you are working mostly solo and not rushing, like I was. Half a day to unpack and organize before you actually get to the fun part of building. It is all very well packed, but it is not packed in the order that you need the parts, so pre-organizing it is essential to making the rest of the project go smoothly. You will need space to do this. This is very clear in the instructions as well. I kept a table set up near my build space, for all the parts/tools.
For the greenhouse itself, I built it all the way up to before installation of the poly panels, then I applied the required sealant via spray application, to the frame inside and out. I also laid out all the other all the other remaining pieces at that point and sprayed those, so they were ready to go after the panels went in. That part only took a couple of hours.
I hardest part was the roof, which took almost a full day in itself, due to all the up and down on the ladder. I am only 5'2", and even on a ladder, reaching as far as possible, I wasn't able to reach the center area of the roof in other to screw on the metal seam covers or apply sealant. Even my 6'2" partner found this a bit awkward/difficult. But we got it done.
Once I got the door and window on, the plants moved in and I took my time with the other accessories because I don't currently have the power/water lines available yet.
Oddities I ran in to: There were two holes not pre-drilled on the top frame pieces, that should have been. Easy fix, but it threw me off for a bit because I had to go back and re-check all the prior steps to make sure I hadn't made an error. At the very end we noticed there was also an extra pre-drilled hole in the top frame above the door, that wasn't utilized in the instructions- again- had to re-read everything to make sure I didn't miss a step. I wish they would have sent a real tube of silicone that goes in a caulking gun instead of the ones they did. Most people who own the other required tools- drill/square/rubber mallet/crescent wrench's, own a caulking gun. Finally, there are a LOT of extra parts left over when you are done, it's okay, don't sweat it. And hey, I had an extra part for the mysterious extra hole above the door, that matched everything else perfectly, so all is well that ends well. All these things are very minor in the big picture; I mention them only because I think they can be helpful to anyone still getting ready to do their own build.
So long story, short, I can honestly say this kit is high quality and has many of the little extras you might be left wanting, if you go another route. To me it was worth the money and time spent and look forward to enjoying it for the many years I know it will last!