I’ve been shooting Adox Scala for a few months now - it is essentially Agfa Scala - a BW slide film.  It suffers from high contrast which it shares with all other slide films.  It also needs spot on exposure to get the most out of it.  This sort of explains why I don’t shoot a lot of E6 film.  Also there is only one lab in the US that processes this film and it usually takes about 6 weeks to get it back. You apparently can process it yourself but the process is in my opinion very complicated.  Here is what I got back from a trip two months ago to Salida, Colorado