For the price (Purchased for $50 and it was originally $108), I cant be mad.I installed this on a pergola outside on my outdoor kitchen. With 2 screws that it came with, I attached it to the top angled down. Its currently 60 degrees outside with a wind speed of 9mph (not constantly blowing). I do not have a jacket on and I'm not in need of one as long as I am under it. I'd say with 2-3 feet in front of it, it puts out adequate heat. Keep in mind, I am completely outside with no walls surrounding me. If it were colder, I would need a jacket.This unit I believe would cut SOME of the cold but not much if its outside with no walls and as long as you are within 2-3 feet in front of it. I have a different heat storm product in my living room that does some damage and I love it. But its inside and takes a couple hours to make my downstairs living room area comfortable. I use my phone to start the heater at 4am and my kids wake up at 6am to get ready for school. Its used to make my downstairs living room comfortable for them in the mornings. Getting back to this product review, in a shed or workshop with a closed spaced, meaning walls, I feel this unit advertised, would excel for the price. It would just take a couple hours. Meaning, don't install this in a workshop at 5pm and expect to be warm by 5:30pm. I'd turn it on at 3pm and start working at 5pm.Outside (in an open space), I'd either get a few of these units or invest more money into a better unit. For my needs, it does the job. I just want a little bit more heat when i'm grilling in cold temperatues outside. I cant be mad at spending less than $100 on a unit to combat the cold outside with no walls when its 40 degrees or lower. Keep your expectations realistic.This unit does NOT have an on and off switch. Once you plug it in, it turns on and starts heating. You may need to have a 3 prong extension cord to add to it. It comes with an 8ft cord that barely reached my outlet. I got the unit that can only be mounted. I had to use my drill with an angle attachment to drill it into my pergola. Took all of a couple minutes to install. It came with screws and anchors which I did not use because I drilled it into my wood post on my pergola. Not having a switch on it didn't turn me away. I didn't care because I can always just unplug it when I'm done. But do not expect bells and whistles with this. You cant connect it to wifi, there is no remote, and there is no switch. For $100 bucks (I paid $50), lower your expectations.As far as quality, I have no issues with it. So far, I've had it on for 5 straight hours and its still producing heat with no issues. Just not as much as I want. It will not eliminate the cold, but simply cut it or pair well with another heat source.In conclusion, this unit does what is advertised. I'm confident it will do very well in a closed area such as a garage, workshop or shed with the right time preparation (start it a couple hours before you need it). I have a heater from the same company in my living room and I love it. It just takes a couple of hours for it to make me feel warm. Plan ahead. Outside with no walls or ways to retain heat, this unit will not live up to your expectations. Which is why you should lower them with this price. Ultimately, you get what you pay for. This unit feels like I paid $100 bucks for it. Even better that I waited for it to go on "sale". If I want more heat, then I will spend more money.