This collar doesn't have the flashy features or style but it has great basic functionality for a great price. Unlike other models, the collar stays on at all times so no pairing or turning on is required. This is key because if its not on, it won't work. I have had it for a couple weeks and the first charge still hasn't died. Wow! The vibrate function is (in my opinion) better for training than a beep. Use your voice as a warning and the vibrate works most of the time as a punishment. Soon your dog will be reacting to your voice, not a beep. Easy!
The bad = BE AWARE of the fact that the shock levels are labelled improperly. There are two strengths of single pulse shock...4 being the lowest, and 1 the highest. Level 5 is low level, two pulse; level 6 is low level, three pulse; level 2 is high level, 2 pulse; level 3 is high level, three pulse. I tried it out on myself and 1,2, and 3 are all very powerful. Level 4, 5,and 6 are appropriate for most corrections.
The vibrate button is sometimes difficult to reach. It is smaller and tucked away. Easy to hit shock by mistake. The remote is also a little large, however I have discovered it works well without the goofy antennae.
Overall I am very happy with this particularly with the price tag. It works much better than many brand name collars I have used and if used properly, your dog should respond well.