Ober Büelen is a paragliding launch in the Swiss Alps. Its recorded elevation is 1,560 m and its mapped launch aspects are W, NW. Compare the live forecast at launch with winds aloft, gusts, cloud base, rain and daylight before checking current local access and airspace information.
About this flying site
Flying to the main landing site is fine, flying towards Engelberg is fine, if going towards Sarnen or Meiringen then make sure you know what you're doing airspace-wise.
Cables aren't really a problem, there's quite a low one about 300m vertical below running from the cross eastwards, then there's a very low one near Stöcklikreuz. (10m above ground).
Take-off
An easy launch site if the wind is right.
You are in the lee of the valley wind, although usually above most of it. Thermals turn on at around 13.00. They can be a bit turbulent.
Access and parking
Easy (but sometimes steep) hiking from Sachseln or Flüeli. You can also park off the main high road. Your topo map might show a suspiciously straight path going through the forest; ignore this, that path doesn't exist.
Local weather notes
Storms usually roll in from the South-West. The top of the ridge at the entrance to Melchtal can often be quite turbulent in the afternoon.
Flight rules
see https://www.shv-fsvl.ch/fileadmin/files/redakteure/Allgemein/Sicherheit/Luftraum/CTRTMA/Luftraumtafel_Zentralschweiz_2014_A4_low.pdf
There's no problem getting to the official LZ. Don't fly towards Sarnen unless you know what you're doing.
Forecasts are planning aids, not safety clearance. Check current observations, official airspace and NOTAM information, local rules and your own experience before every flight.