Thats without any fascia, not that pretty.
Its worth bearing in mind that with the fascia he provides, unless you run the frame on the lowest hole (most drop - 50mm) the fascia will look a little odd due to how it mounts.
What I did was find a blanking plug for the plastic fascia (the hole for the lever) and trimmed a little off the bottom so it didnt catch on the frame. I run the seat on -30mm (though I am thinking of going lower) and the plastic fascia screws on the same as it always did.
As for matching side to side, it would be nice but does not look too odd. Plenty of cars have height adjustment in drivers seats only.