It's that time of year again when we ask ourselves whether it's time to upgrade to the latest model. Those on HTC's flagships have it a little harder, as year after year the company puts out almost similar smartphone. To some extent, the HTC One M9 just unveiled at MWC 2015 is no different, present an almost incremental upgrade path. But looks, and specs, can be deceiving and our answer this year might very well be different than our last. Read on to see whether you should grab that shiny new One M9 or not.