I'm considering purchasing a smartThings hub but I see 3 choices and I'm not sure what the difference is. I See a 2018 SmartThings Hub a Samsung SmartThings Hub and a SmartThings Link for NVIDIA SHIELD. I kind of assume the Link for shield is all cloud based or slower since its really just a USB stick, but figured I would ask since I do own a Shield. What I really wonder is what's the difference between the two hubs? The descriptions aren't a cut and paste but they also don't really differentiate why I should spend $20 more for the Samsung branded option. Can any one offer insight?