My only regret is not checking the opening hours better - we arrived just as the church closed! However, we did get to enjoy the stunning view from the top of the hill, and that alone made it worth the trip. When you stand and see the beautiful city before you, you can only be amazed.
The building itself is looking a bit in disrepair which could be due to works halting during Covid. But the surrounding areas offer a lot of nature trails and opportunity for nice walks in the sun, so I'd definitely recommend visiting in the summer. Do bring a jacket - the wind can be bitter!