GIVI... Expensive but good. Only PIA part is installation of the GIVI racks if you get GIVI racks. If you decide on V35s for side cases, they hug the bike like they are stock part of the bike. You can also go with SW-Motechs for V35s since you have a later model bike, but, there are additional limitations for its use (I highly recommend you check that out before you purchase).
No experience with SHAD other than looking at them at a motorcycle show when I was looking to get mine along with other brands. For me, GIVI won, but I am sure there are others around here who likes SHADs.
There are actually other treads on this subject on this forum, so I highly recommend you do a search and read them as well.