Price of micro SD per GB is much lower compared to a few years ago.Works fine with LG G2x and Galaxy Note 2.With all the new phones with more than 6M pixels and 1080p video, your internal storage is going to dry out very fast. External Micro SD is definitely a must.4GB and 8 GB are running out very fast :(. 32GB is definitely a welcome (especially if you buy it during the sale)Pro:1. Bought this during sale - under 25 USD.2. Class 10 - fastest (for now)3. Trusted brand: SanDiskCons:None.