But I am no churchgoer, I confess; I never was inside.
The church was built in the early twentieth century and not, like was en vogue at the time, in some kind of neo-gothic style or art nouveau even, but in plain and simple neo-romanic style.
Compared to the much more famous Votivkirche on Ringstrasse, which was built a little bit earlier (and which is much bigger, by the way), I would rank this church on Enkplatz with not even a 'proper' name (the name literally means just 'the new church of the parish of Simmering') clearly on first place.
And if you're curious, I'm prepared to answer a question you might ask yourself: no, I wasn't ever inside of Votivkirche, too.