Summary: I wanted to connect wired while at my desk for faster file transfers within my home network. I routinely transfer large files to and from my NAS (many GB at a time) and the wireless was just slower than I wanted. I needed a switch to add the extra speed. While I love wireless, my mix of old and new hardware doesn't allow for the fastest wireless possible, so a simple switch was the answer I needed.
Summary: I have always found TP LINK equipment very reasonable and trouble free. You can use any port as a up link, therefore technically it is a 4 port switch, not 5. I consider a 5 port switch to be 5 spare ports and one for the up link.I would have liked it to have a 1G indicator light on the switch but your lan network card will light will be green with a 100M and amber for a 1G signal. This switched worked fine for $20.
Summary: The transfer speed if F'ing phenomenal. Local file transfer is so fast I sometimes am done grabbing a file off my server before my workstation is finished booting uo. But seriously if you don't have gig connections it makes using your home network feel like work.
Summary: Using to connect my lan which has a couple servers and several computers including a raspberry pi running xbmc and streaming from a samba share, as well as an internet connected TV running wired to the switch. The Gig speeds are nice for the wife who does a lot of work on files located on the Samba share.