4 stars: App appears to be working well. Although I do use another app, Network Signal Speed Booster, simultaneously with this app. I did a speed test with both apps running on my Virgin Mobile 4G LTE Network and I get about 30mb Down and 5mb Up. Speeds were slower when testing each app separately. So I'm happy with the combination of both apps because they definitely work for me!
5 stars: This is undoubtedly the best in the class app. I have been using it since almost a year and it just keeps on getting better and better. Now I am almost always connected to the internet. It seems to boost the performance of the connection. It also improves the speed to some extent. I highly recommend this app to anybody who might be facing any connectivity issues. Their support team helped me to fine tune the settings as per my requirement. Special thanks to the awesome support team, you are the best!
4 stars: After I use all my high speed data, Straight Talk throttles me to 64kbit/s (which is well below the advertised 2G throttle. It's actually about 20kbps slower than the low end of the average 1X connection, but thanks to their arbitrary definition of 2G being as low as 64 kilobits per second it's fair game as far as they're concerned.) so I need this to keep webpages loading and to ensure that apps will download. Without it, the internet and internet related things just don't work. It's almost as if modern phones expect you to have a modern connection with modern speeds. Huh.