I love this Halo kwikset wifi lock system.  It was easy to assemble and install if you already have a deadbolt lock. I downloaded the app and it had easy step by step instructions.  I like that it is connected to the wifi  but have the option to still use the keys if you want.  The system is battery operated so if you do not want to connect it to wifi, you don't have to.  The downside to this is the app is tricky as far as locking and unlocking.  You have to use bluetooth and be right up on the door for it to work. Also, mine is currently saying it is jammed but it is actually locked. It has a sleek design and looks nice. Overall I do love it, just some kinks to work out. It is convenient because you don't have to dig out the keys. Great product made from quality materials.