I don't seem to have too many problems with wifi on the PS4. But, I don't play a helluva lot online. I do stream a lot of Netflix and Youtube on PS4 and haven't had many cut outs.
Unfortunately there is no aesthetically pleasing way of having a wired connection.
“The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.” - Bertrand Russell
"When the power of love overcomes the love of power, the world will know peace."
Jimi Hendrix