Pros: So I like this product, in general. I have purchased memory cards in the past and no matter what, they all had those little adapters so you can plug them into your laptop(in the SD card slot). This one does NOT have the little SD adapter. It physically fits in the bottom of my Raspberry Pi B+, ho...
Summary: I am using this in a TomTom for holding extra maps, and despite the higher class speed, there is a noticeably slower startup and boot time when switching to the map on this card. There doesn't seem to be any lags though when actually USING the map during navigation.
Pros: good price, decent speed
Cons: depending on usage, might need a card with faster speed, see "other thoughts"
Summary: I wouldn't recommend these for dedicated cameras (DSLR or point-n-shoot) due to the speed, but for other devices that don't require a high-speed transfer (phones, tablets, laptops, etc.) these are just fine.
Pros: Great price, very affordable. Easy upgrade from older 2, 4 or 8GB microSD cards. No compatibility issues so far.
Cons: Not the fastest cards available (Class 6 vs. Class 10)
Summary: This came as a freebie combo with one of my orders. I've used it a few times to backup and transfer large amounts of media content between devices requiring static memory. Works fine for this purpose.
Pros: Price is right. Faster than I originally thought.