Followed other users advice. Spot is OK, although cars are moving fast and have to decide late whether to stop for you on the small gravel area before the freeway. After 30 mins we got offered a lift to padrón, 25km further south. It was a mistake to accept, there was only local traffic here. Recommend if using this spot, wait until you get offered a lift till Pontevedra or further, nothing closer.

There is a small roundabout before getting to big one next to it. Here you can fin cars heading AP 9 on both sides (Corua or Pontevedra) and also AP-53, heading towards Orense, without doubts this is the best path if you are heading Madrid or Barcelona. There is not a lot of place to stop, but I do not know a better place.

I often use this spot to hh from Pontevedra to Santiago. Many drivers avoid the highway (I'm originally from here, so I even do that myself when I drive). There's a parking lane which is often almost empty, so cars can stop easily.

destinstion to Pontevedra, Vigo. Monday morning, 1 hour of waiting and catched a car to Vigo (N550, not highway, but the pace is for both) ther is little parking area after the entrance to WW Services, so car can stops there.

It also works for the south, got a ride to Pontevedra within 10 minutes.

For direction Pontevedra/Vigo/Portugal. Use a sign. Stand at entry to motorway just down from the roundabout. 30-60min wait.