I've had this for only a week and already i can not understand all the bad reviews. I don't know what other people are using for a phone but i use an iphone SE. I can connect to my camera from in the house. I don't understand the connection complaints. i have learned the distance i need in order for the the camera to be up and running by the time i need it. It's not connected to the car's revers so you have to plan ahead it's not like the factory installed model. I use siri to open the app "hey siri open zus" app opens I click the camera on the car. Sometimes it connects right away to the wifi others it gives me an option to go directly to my wifi settings to change the source. I then say again "hey siri open zus and its up and running. I placed it on the top of the plate so it makes it easy for me to back up to my trailer,I can see the top of the ball. I've used it quite a bit this week and haven't used much of the battery. It really is easy to attach to your vehicle. I'm going to suggest buying but keep your eyes on the road when getting it up and running.