Installation in 2010 was okay. Alarm has worked and they respond. That's not the problem. My frustrations with this company began a few years ago when they called my cell phone, which is the primary and emergency number listed with their service, ostensibly to have me participate in a survey. At the time I was on vacation, hiking in the mountains. When I got back into some sort of cell phone range, I could only see there was a voice mail from a number in Utah, which is where the company is located. Panicked that someone had broken into my home, I had to drive over five miles just to get into cell phone calling range so I could return their call, only to find out they wanted me to do a phone survey, probably with a sales pitch at the end of it. I was plenty mad and let them know it and asked them under NO circumstances should they call my emergency number for anything other than alarm emergencies. They apologized and said they would not do that again. Yet in the next year or two they did so twice, trying to get me to "lock in my fee" and sign on for an extra five years. Again I asked them not to call my emergency number for sales pitches. I got kind of a dumb response like "Well how are we supposed to contact you then?" I reminded them that they have my email address and home address. Duh. Finally I received a sketchy email asking me to "sign" the online contract, which didn't spell out very much, and sign up for five more years. I responded that I needed to see a contract outlining what I would be signing up for. They eventually did send something via regular mail. I looked it over and considering I'm not really thrilled with Northstar and don't expect to be in my home another five years, I politely declined and said when my current contract ends in June 2015 I will decide what to do then. Today, on a Sunday afternoon, a sales guy from Northstar shows up on my doorstep, totally unannounced, to explain changes in their service. At first I refused to let him in, saying the company should let people know if they're going to send around a representative and that I didn't feel comfortable about the surprise visit. After talking a few minutes, I was convinced he really was from Northstar and let him in. He said the mechanism in the current alarm box which allows 2G cellular notification to the company when the alarm goes off (as opposed to a telephone landline) was being discontinued by the cellular service they use (he did not say which provider) and they needed to upgrade my system, install new alarm box, and it would be done at their cost. The second papaerwork he pulled out for me to sign had a new 60 month contract already filled in, and I told him I didn't want to sign up for another five years. We went round and round about why and how long I might be here, etc., which frankly is none of his business. He started quoting things from the original contract that sounded suspect, so I said I needed time to look at this one before signing, since I didn't remember those things from the first one. He said if they needed to send a representative out again to do the final contract signing they would need to charge me a technician fee. That's when I kind of lost it. They arrive unannounced to pressure me into another contract for a minimum of three years and hopefully five years, then if I want time to actually READ the contract they're putting before me, it will cost me a technician fee. What kind of business practice is that? I asked him to leave. Since I have less than a year left on the current contract, I will first try to find out from them when the current alarm system goes dysfunctional due to their cellular supplier no longer supporting 2G ? I have little hope that I will get an answer to that ? and then simply pay off the contract and go in search of a more reputable alarm company.