I haven't experienced any of those problems. On the WiFi front, I live a challenging WiFi life, because I travel full-time, and connect up to RV park WiFi regularly. I don't find it problematic. I don't know what chipset my laptop has, as I've never had to look into it. It's a shitty HP lappy. My desktop has had several different USB and PCI WiFi adapters without major issue. I do remember I did check google to make sure I was buying a compatible one, though, it wasn't hard to pick one that was known to be well-supported, even at Best Buy or Fry's.
Likewise, USB 3.0 works fine for me. I dunno what chipset any of my devices have, but they all work.
As for Skype, I used to use it regularly, and then switched to Hangouts. Skype worked fine on Linux up until I switched. I dunno the state of it now, but I don't need it, so it's no big deal. Both Google and Facebook have video chat and phone call features built right into their messenger apps, and they work fine on Linux; Skype is deprecated, IMHO.
No, Linux desktop is as easy to use as Windows (sometimes perhaps easier), the problem is one layer lower: the drivers.
1. Bluetooth breaks about every 3-4 months. 2. Wifi. Where do I start. Say: https://wiki.archlinux.org/index.php/Wireless_network_config... "If you have problems connecting to networks in general or your link quality is very poor, try to disable 802.11n" -- are you kidding me? Then if you have anything complicated, chances are you are completely and totally screwed. Examples: a) PPPoE over Wifi is simply not supported. b) The only way I found to connect to my work VPN is via a Firefox-running-as-root (I kid you not -- and it wasn't me me who came up with this solution obviously). 3. Battery life. http://unix.stackexchange.com/a/119620/9452 4. USB 3.0. Sure, NEC and Intel hosts are supported. Throw your card away if it's not NEC. 5. Hybrid graphics.
On to the destkop:
1. Skype. Say what you want, Microsoft abandoned it and Skype is a huge part of communications these days, sorry. 2. Chrome and hardware acceleration.