In Brazil: no! especially LTE components.
some distributors have submitted some old models for ANATEL certification.
LTE models I believe that works smoothly with some carriers.
I had a project to use them embedded, but due to Mikrotik's delay in putting them into production and the difficulty in importing I gave up.
I apologize my grammatical errors, my english not so good, I am not a native speaker.
Wiki is maintained in English. I use Google translator.