I own a pair of the Focal 1038BEs. I think they are great floor standing speakers. I did a demo of the Focal Utopia Scalas and really loved their sound. They do present a live, you are there sound (at least to my untrained ears). I found that the 1038s were a compromise - essentially, a smaller version of the Scalas. I'm sure the Stellas are even more impressive.
I don't have much experience with Sonus Faber, so I can only give you my opinion of the 1038BEs. I would recommend a musical sub (or two) to go with the 1038BEs as well as they are not the strongest low end performers. Again, this is just my opinion.
It is hard to find out if a set of speakers is for you on a 1-3 hour listening session with other people's gear. I did many demos. Finally, bit the bullet on Focal Scala's little brother and I am thrilled that I did. They get better every day.