The gotcha has many pros and cons: I'm only reviewing this website because there's no u.s. website. Cons: Only uses red pokeballs. Once they run out the device stops working. No patch to recognize great or ultra balls. People have complained about this and niantic refuses to add in a patch for it. So what the 700+ ultra balls in my bag don't count. Yea thanks niantic. Now I have to have at least a couple hundred red balls to compensate for this. Disconnects a bit but other wise stable. Face it some devices work some don't. I've had some last a long time while others crap out after 3-6 months. When they work they work great. What do you expect from cheap china crap? Doesn't catch shadow pokemon. The original did but the evolve doesn't. Sort of annoying. Too easy to adjust the settings on the watch. I've had times where my sleeve turned off a setting and I didn't realize it until I got there. Kind of annoying. Vibrate notification can be turned on or off. This feature is nice as my Family is active and they hate us glued to our phones. This helps me play secretively in the background without them knowing. Frustration. When this device doesn't work you'll only receive frustration. Pros: Auto catches/spins for you. I use this as I drive around town to play. I find I can get more driving around town than playing for hours on end at the local parks. This is nice as the original one you still had to click. I didn't feel safe doing that while driving. The evolve does it for you and you don't even have to think. Gain xp and stardust fast. Collects research tasks with the auto spin. The only ones it completes for you is the ones where it says catch. Which is sort of nice. Let's me play at work on shiny days. I use to be annoyed when I couldn't attend a shiny day due to work. Now I just leave the app running in the background in my pocket and have the device running in the background. I have the battery pack on standby to charge it on breaks. No more shinies missed. App runs even if it's on standby on your phone. So long as the app is running in the background even with your phone off it will still work. Which is great because theres' been a few times where the touch screen minimized the app or the on/off phone button got triggered some how in the pocket. The gotcha evolve is better at charging due to the usb port. The original kept falling out of the charger and failed to charge a lot. You had to hold it in with a rubber band to charge. The evolve charges in about 1.5 hrs at most if battery is empty. The original one took like half the day to charge. The best pro about it is the device continues to auto catch/spin even after the going to fast message pops up. You could be going freeway speeds and still auto catch/spin. Overall I love the gotcha evolve over it's predecessor. I feel I am getting more xp from this thing than spending hours on end playing at our local park. Now I'll just drive around town for 20 min and rack in the characters, items and xp. I enjoy the fact I can have this running in the background when my family is out and about and I don't have to have my face plastered to my phone. Just knowing the device is running in the background is helping me feel like I don't have to check my phone ever time I'm in a high density grid.