I've been using several plug-in Ethernet home adaptors for a couple of years now and have only the 85mbps type devices and they have been bullet proof.
Just a word of warning about homeplug devices, these devices MUST be plugged directly into a mains socket or extension lead that DOES NOT have any kind of anti-surge of anti-spike device fitted, they will NOT work if plugged into this kind of device.
These Billion homeplugs have speeds of up-to 200mbps and are suitable for PC's, internet TV and plain old networking one PC to another. The big advantage with these devices is that they work through your home's electrical wiring circuit, so you can have internet or network access in any room around the house, even in the garage or in our case shed/workshop. Unlike wireless connections the speed of these devices are not effected buy interference or distance, as long as they are plugged into a socket on your houses wiring then a connection is possible. I use homeplugs for a print server, network hdd, 2 PC's and a Humax Freesat box, laptops are connected wirelessly to my router.
Billion claim these devices are energy saving, seeing as they will be plugged in 24/7 then this is very welcome, they reduce their power consumption by 50% during standby and even during use they use 20% less power than other homeplugs.
The setting up of these devices could not be easier, simply plug and play. The LED's on these devices indicate, power, powerline connection and Ethernet connection, the powerline and Ethernet LED's blink when data is being transferred. There are two buttons on the device, one is a reset to default button(hold for 3 seconds) the other a sync button, this is used for syncing homeplug adaptors together and is a security feature on the device.
These devices are half the physical size of my old plug-ins which is good, they come with 3 clip-on mains plug adaptors, one of which allows one the device to be used upside down, handy with using them on and extension lead.
In the box,
2 x Homeplug devices
2 x RJ45 Ethernet cables
1 x CD containing quick start guide, user instructions and a utility program.
1 x Quick start guide
1 x Warranty info.
The speed of these devices is impressive when networking, a quick a reliable connection , although using the internet is as normal due to my 8mb connection speed.
So, these devices are recommended to those who don't have wireless connections available and want a secure network around the house or just want a pc in a room where a telephone socket is not available and want internet access, with all the new technology that is centring around internet TV and programs on demand these devices are going to come in very handy in the future.