Trench drains are a great option - this one in particular is actually our patent pending drain system! Since we are designers and installers we recommend and install the drains.

One of the nice things about trench drains is they also make it possible to use larger tiles (thereby making less joints).

What happens when mold and mildew start.

@innovate building solutions - you're right! Gives you more options for designs as well.
@kbenhb -actually these are less likely to mold and mildew than a standard drain - the design of this drain allows for more drainage and does not allow for sitting water.