Easy to install, helps in summer
353309
Easy to install. Helps with the summer heat a little.  My garage doors face west. I can tell a difference in temperature after installing the panels. We will see how it does when the winter comes.
923157
Incredibly easy to install.  Too bad it was 10 degrees and windy out!  But I grill all year here in Maine and was tired of lighting my expensive Weber with a match.  It took 10 minutes to install.  I should have done it during the summer!
2950122
relatively easy to install and keeps the fanny and back warm, takes about 10 min to heat up on cold days
238760
Easy to install - you can use velcro or the screws.
443072
No other way to work in the heat of the Southeast in the summer, these are easy to install, work well, clean up in your regular wash and very durable. You feel more comfortable when sweat is not rolling down your face into your eyes!
620327
I am not a licensed electrician, but this was very easy to install and functions as it is supposed to.  The reason I chose this model is that the housing is all metal instead of plastic.  Since it will spend all day in the sun, I figured the extra cost was worth it. Would buy again if the need arises. Have used several Intermatic products in the past, all have functioned as intended.
Update: Still going strong after a hot and humid summer.
2274794
I bought this for myself last summer, I bought another one for my parents and it is wonderful.  They are now getting around to installation!
1878909
We installed this while sweating in the afternoon heat; within 2 minutes of pulling the shade the first time the porch cooled off to a tolerable temperature.  it saved plants that were destined to die otherwise and has transformed my southwest facing porch into an additional room for the summer.  Tying it off to the railings is effective in light to moderate winds.  In heavy wind i roll it up to prevent potential damage.  Fantastic value for the price, easy to install and guaranteed for 3 years.
75189
Not the easiest to install, but it does its job well
4154551
This works great. We bought two of them several weeks apart and the 2nd one was about $20 more that the first, but we were into the summer heat so I guess that is why.  It is a little tricky and unstable connecting the vent into the window sash...not a perfect fit but an ok fit.  there is a space and we have used tape to secure it is place.  I do like that I can keep the screen in our window ( We have new-ish Anderson windows).  The room we are using this in is a newly added full room over a 2 car garage w/ 5 windows facing east, west and north.  The room gets hot in the summer b/c the ceiling is lower that the rest of our house and there is just a small insulated airspace above between the ceiling and shingled roof. Overall, I am very happy with this unit and would not hesitate to re-purchase.  The 2nd one in in our kitchen window...that one is a little more precariously fitted into the same type of windows. (we have a note on it not to move the AC...).  I guess if we studied it better we could come up with an improved plan to fit the exhaust tubing into the window space.  I like that there is no big ac hanging out my kitchen window on my deck with my 1 & 3 yr old grandchildren playing on the deck when they visit.  Would consider replacing all my window units here with these eventually. We are getting older and it is difficult to lift the old AC's into the old double hung window of my 114 year old wood framed craftsman style house in New England
1610353
Easy to install and has worked well for the last several months.
315668
Easy to install in car. Easy to place and remove phone and holds phone securly. I live in southeastern USA where summers get very hot. After 3 years heat caused suction cup to release. I probably could have washed suction cup with cold water and reinstalled again but I bought a new one after being satisfied with the first . Would recommend this to anyone.
3502515
I used this during the outdoor installation of some PoE security cameras at my home.  The installation was quite simple and I was able to cut them to size when needed.  While these do have a sticky back to them, when affixed to my home in the heat of the day, they would fall off after a few days.  I was able to remedy this by installing them using the sticky backing, and then once I had them where I wanted them, I would go back and apply silicon cocking to the top and bottom of the track to water proof it and given it additional cling to the home.  In all these have worked well for my situation.
629926
nice, easy to install and use; blocks out most of the light. Doesn't keep all of the heat out but it helps a bit.
1421222
It is thinner than I expected.  It was easy to lay down and install.  The pool season hasn't started yet here in the Pacific Northwest but I'm hopeful this will keep the weeds from poking through.  When the sun hits it, it warms up nicely where as the forest green tarp that originally came with our pool didn't, so hoping that the warmth helps with keeping the pool insulated as well.
4156765
Nice air circulation; helps in the heat of summer.
532316
These definitely keep down the heat in summer, and the cold out in winter.  My master bedroom has sliding doors that face west and get hours of direct afternoon sunlight. The room would heat up to the mid 80's during the day in the heart of summer, after applying these there was noticeable difference in room temperature in the afternoon. The room is still hotter than the rest of the house but it now stays within a few degrees vs before when it would at least 10 degrees hotter at times.

I have used these in more than one home and had repeated success. Installation can be tricky so follow the instructions close and if you have a chance start on a small window before you tackle something like a door.