well, how many different cards do you use? I use only CF, SD, and XQD. i'm covered on the first 2 using the quite fast 2 slot and have my XQD reader from sony that came with my D4.
The 25 in 1 is cheaper and there is no mention of UDMA 7, so I would say that it should be slower that the CF/SD reader. The latter works fine for me. Transfers are mainly limited by the card and the target storage, which should be a disc array or SSD for maximum throughput.
I've the older Lexar usb 2.0 2-slot and it's fantastic, would imagine the usb 3.0 is better/faster...I've never purchased the all in one type reader...Jerry