I just completed it and the guide was excellent. I used a hot air station i got for Christmas and it made it so god damm easier BUT make sure you add some kapton tape on the bottom of your new sticks so you dont melt the plastic, i did it on one of the sticks and now its kinda weird.

Also be very careful with the antennas, i think i bumped one of the connectors with my iron or something and now it wired only, but thats ok since its only used at my desk or connected to my switch thru a cable

Overall this is a very good guide for a very hard job, but if i had to reccomend some changes i would add the tip suggestions from @lukasziwas53885 since those were great tips from him

Get a solder sucker or one of those copper thingys, they cost under 10 bucks and work just fine for stuff like this
ifixit themself made a video guide on this recently