A curbless or hobless entrance for special needs access is more readily achieved with a modular system, as the levelling of the shower floor to the bathroom floor is inherently problematic with non-modular systems as they have no on-site adjustment.
Achieving a curbless or hobless entrance for accessibility purposes is simpler using a modular system, as adjusting the shower floor level to match the bathroom floor is challenging with non-modular systems due to their inability to make site-specific modifications.