Coax or wait for Fibre upgrade?

[wireless]

https://www.amazon.ca/Actiontec-Ethe...erterconverter

should i get this or is this good and or will it work with telus optik tv? my dad has a mobile trailer and the modem is at one end and my gaming pc is at the other.. but my dad upgraded to 1080p wireless set top box now and his has a coax cable available now. the tech said i should with my time and money get a 30 to 50 feet cat 7 ethernet cable and run it under the trailer or get a coax to ethernet adapter for my computer to be hard wired, some guy on you tube go from 17MBPS upto 20. so if i have internet 50 or soon fibre later will with work good?

or should i just wait to get upgraded to fibre by June and get every 4K Ultra HD and new Wiring? =) =/


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