Question about Replacing my bookshelves with Alpair 5s

Hi All,

I have a 6.1 setup, The receiver is from Sony (STR-K880).
Currently, my front speakers are bookshelves found here:
Product7.
They are rear ported. Very detailed and neutral. I sort of like them for their non-boxy sound. For all my music content I use only front speakers and Sub.

I have some serious space constraints in my room. So I want my fronts to be wall mounted (on wall brackets).
I'm considering Alpair 5's with custom made Sealed boxes for this project. I want the bookshelves replaced with the new speakers made from Alpairs.

I want suggestions on this. How would it fare against my current bookshelves.

Note: My sub takes down from 100 Hz

Thanks in advance