Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: The sides of the unit w/acrylic doors are open?  I thought (assumed) the sides had stationary acrylic panels.
Document: Just received my TMS storage unit w/acrylic glass doors. Must say that I was surprised how easy the assembly was! For the price of the unit, I thought it was a good value, especially since the shipping was FREE!!!!.
I like the acrylic doors for safety purposes. I do wish the sides also had acrylic panels to close them from dust. Anyway it serves its purpose and is better than the oak which is everywhere available here... I like contemporary design and light colored furniture.
The open sides are a puzzle -- why?? But the unit fits the space. I do long for days when assembly was done at the factory but I guess that would be too expensive to ship from China. It took about 3 hrs for one person to put together. Everything was included - no extra pieces. Takes a Phillips head to put together. Would be easier for two people but once the first pieces are in place it was ok... I've put together worse pieces.
The product is as pictured and easy to assemble. I had to wait several months to open and assemble. Upon opening, the acrylic in one of the sliding doors was cracked. I contacted the company about the cost of replacing the acrylic, realizing I was well past the 30 return/replace policy. The company contacted me immediately and to my surprise said they would replace the the item in question. Needless to say I was pleasantly surprised but very thankful for their great customer service.
I bought this storage to put in my bathroom as I recently remodeled it and need storage space. It was so easy to put together didnt even need my husband!.... The &#34;wood&#34; is very cheap so be careful when putting together otherwise it gets cracks very easily. Someone had complained about the acrylic glass but I thought they looked good and not cheap looking.
Nice and airy and these fit that feeling. We purchased this top unit and put it on two of the lower, enclosed door units purchased at the same time, to make a three section unit which is about 75 inches high. Perfect for needed extra storage. Inside the open end we hung small cloth curtains to make the contents of the lower units invisible and to keep out excess dust. Overall effect is pretty good.
I am disappointed with the quality of the composite wood board (doubt if it is a composite wood material), the board cracks easily near the dowel slots and the boards are too soft to be used with wood screws, couldn't understand why the manufacturer couldn't use boards with a bit more strength, another complaint is the quality of the barrel nut, the nut itself is cracked, if I pay more than $100 for this unit, I'd expect some extra barrel-nuts to come with the packing.
It's cute, the instructions were a little vague (the pictures do not match the product) so there was a bit of guesswork involved. It's smaller than I thought it would be so some of my larger items don't fit but that's fine with me because I don't have a lot of room in my place so smaller is better. It looks great it does it's job of displaying my great-grandmother's tea set and it didn't cost me an arm and a leg.
I bought two of these to stack for storage in a bathroom. Assembly was a pain, but once they were together, they are working well. I bought frosted window film to cover the doors, and now my clutter is hidden. Love the look of them and the amount of storage is great- adjustable shelves are perfect for tall bottles of shampoo, etc. They are not high end by any means, but for the price, seem sturdy and will be fine for my needs.
When the TMS Pacific Stackable Storage item with Acrylic Door was delivered I figured out that both the shipping box and the sliding door window are damaged. Basically, the shipping box is folded in several places and sliding door window is broken.I'd  instantly reached out to the Target Marketing Systems to have this replaced within 7 days or return to Amazon. Although they promised to have the replacement within 5-7 days it took 30 days for the broken door to be delivered.
Answer: Yes the unit with the acrylic doors has open sides.