After you reach the route 626, do not cross it immediately. Go to the right and take 626 for about 300 m. Then turn left to the wall and soon you will see the table “CESARE PIAZZETTA”.
You may be scared by reading “ONLY FOR EXPERTS … ROPE NECESSARY”. When I was there I met about 20 other ferratists and nobody had an extra rope or a professional guide. On the other hand, it is true that this ferrata goes very steeply up; you can see the steal rope on the right of the ferrata table on the picture. Doesn’t it go vertical enough?
A good thing is that one of the most difficult places is immediately on the start. It’s just first 8 meters. If you do this without problems, you should not have any problems later.