I have that exact one fitted to my Thou - if I can fit it inside an hour then anyone can !!
The major advantages over other similar items are :-
(1) A true colour match - not just 'close to'
(2) Slide underneath the current bodywork so you retain all the fittings currently in the tail unit & don't have to cut anything away
(3) 'Proper' Suzuki connectors for the lights and indicators - no faffing around with insulating tape / connector blocks
All in all, I have to say that it's worth paying the extra for