Even though Android 5.0 Lollipop is one of Google's largest and most ambitious new Android OS upgrades in quite some time, that doesn't mean it is flawless. In fact, there are several problems/changes with Lollipop which some would argue are a step backwards for Google. This is on top of the fact that the initial rollout was a bit buggy. This makes for a good conversation topic as we can "arm-chair" dissect Google's decisions to try and figure out what they were thinking with these relatively minor mis-steps. Here are the four most glaring problems with Android 5.0 Lollipop: No Silent Mode with Volume Rocker - This is definitely one of the most talked about issues with Lollipop, if not "the" most talked about problem. It had us scratching our heads trying to figure out what Google was thinking on this one. Why change what worked fine before into something that is now more complicated... why fix what isn't broken. Yes, they added the Priority Mode, but that creates extra steps to actually turn the phone to vibrate or silent, when a few presses of the volume rocker got you there before. On top of this over-complication, this segues into our next biggest complaint, which is that Priority Mode doesn't always work! Read on... Apps Can "Hijack" Priority Mode - So, why have a Priority Mode at all, if some of your apps can over-ride its settings? Perhaps it's just a bug, or simply developers figuring out sneaky ways to bypass a security flaw, but this basically makes Priority Mode utterly useless. Google... Please give us back Silent Mode with the volume rocker! No Lock Screen Widgets - Here's another head-scratcher. We were able to create widgets for the lock screen before Lollipop... why would Google take that feature away? This seems almost like a parent taking the cool toys away right after giving them. Just a bad move Google! Recent Tasks Switcher is Too Complex - Besides the fact that the new recent tasks switcher is too crowded, its functionality is also too convoluted. What makes it worse is that the cards will stay with you even after you reboot your phone because there is no "clear all" capability. That means you have to manually swipe away the ones you don't like which is tedious and time-wasting. These are the main gripes we have with Lollipop, but there might be more. For the most part, we love the new UI and most of the new functions. Overall, it's a fantastic OS with great performance and an "easy on the eyes" new interface. Despite that, Google really needs to address these concerns going forward. What other improvements do you wish for in a future update?