The acting is the most solid I have ever seen for a very, very, very long time - the entire cast performed miles above the bar. Barbie Forteza and Joshua Dionisio played the younger counterpart of Dantes and Ramos' Cholo and Jodi, and they played it well, they had a certain chemistry that made you feel for their characters, Forteza's crying scenes are noteworthy especially coming from someone who has no past acting experience.
The supporting cast did amazing jobs, starting with Karen de los Reyes, who had her career's best performance! De los Reyes has always been known as the "best-friend", although she has done well with a few intense characters like in Mulawin. In Stairway to Heaven, de los Reyes proves that she can literally eat the leading lady in acting (although Ramos was still amazing). Same goes to Soliman Crz, who best performance he has ever delivered, the audience could feel his heartache and love for his son Tristan (played by TJ Trinidad), the nice third wheel. The most memorable scene of him here is when he fought off Jean Garcia's evil stepmother character, not with violence, but with sharp words! Jean Garcia gave out a scary performance, her scene alone when she revealed Sandy Andolong's character's affair was simply devilish, she was so scary.
Now, the main characters! Glaiza de Casto was effective as a villain who only wants to be loved and wanted things she was deprived from. TJ Tristan's Tristan is a tragic character who desperately wants to be loved by the woman he cannot have.
Music also played a very important role in this drama series, Regine Velasquez's rendition of Faith Cuneta's "Pag-Ibig Ko'y Pansinin" wasn't really the best, but it was beautiful, I felt shivers down my spine. I also love the music score, although there were some off-key and kinda out of place music scores, but listening to the score along is lush. Overall, Stairway to Heaven showed the entire cast's career's best performances. Highly recommendable!