This is a classic invisible fence system for two dogs. While the hardware looks like it came from Radio Shack in the 80s, it functions well and does its job.The lightweight receivers are great for dogs on the smaller side at 8 lbs. does offer smaller ones which might be better if your dogs are on the smaller side.We had a wired pet fence 15 years ago and I found it interesting that this unit was nearly exactly the same. I guess if it's not broke...Setting up the in-ground fence was reasonably easy once we decided exactly where we wanted it placed. It was a little challenging since we didn't want to run the wire around the entire outside of the house but wanted the dog to transition out the back door into the protected area. We were able to run the wire far enough away that it worked just fine. It was a little challenging to figure out how to place the wires, it did feel like there was a lot of extra wires going back and forth with the surge protector and power to the units. We were able to plug the electronics into the garage and run the boundary wires out through a vent hole but it wasn't ideal trying to keep the units inside and powered.The receiver units were small enough for our larger Yorkie who is about 11 lbs but had to get a smaller one for our small dog which is about 5 lbs. We like the fact that the collar has multiple settings to be able to know that the dogs are able to be notified but won't be getting too much of a shock as they are learning.The dog responded quickly to the warnings as our puppies are afraid of anything different so it was very easy to keep them in the boundaries. I don't like that the battery life is only about 2 months, it seems that for a unit costing as much as this one that they would be using better battery technology. I know offers some with rechargeable batteries, it is unfortunate that they aren't included in this model.Overall, this unit is as described, a BASIC unit that gets the job done. It includes everything you need but if you are looking for anything more modern you'll have to look at the higher end units.