Brutality and romance are 2 aspects which are somewhat contradicting to each other, but the brutality-romance ratio is perfect.
The only thing I find a bit less enjoyable is sanitary issue, but that is a very personal preference of mine.
Love both Mete and Kerem. A perfect match they are.
In fact I'd say it's more than just perfect ratio - the best part of it is how Schweinchen31 has imbued romance into the brutality.
My favourite parts are the scenes where Mete cried when he received texts from Kerem, where Kerem thought of Mete's words about his harsh life of the past, and where Kerem had already known Mete's wish to have a normal date without being told. As a reader, I am very much touched.