I have HEED bars on my VStrom 650 that came with the bike, and I like them for style, fit and robustness.
I confess I have 'drop tested' them a few times now, always at a standstill and also always with LOMO crash bar bags attached. They have done their job perfectly.
As I liked them on my 650, I ordered a set shortly after I acquired my 1200GS and I don't remember any import duties. Also, looking at the invoices, there's nothing shown. I think maybe they came in below the level at which the EU / HMRC can be bothered to get into all the peperwork required. Anyway, they were pretty straightforward to fit.
On GIVI. I have not used their crash bars, but recently fitted a set of Monokey pannier racks to the Beemer, as the Vario panniers are complete PANTS.
The install was ...er, traumatic to say the least, with emails and phone calls swapped between the supplier (who was brilliant) and myself. I the end I bought some longer M6 fixing screws and turned up a couple of spacers to finally get a reasonable fit.
I was told that this was not uncommon, so would be a little wary of Givi bars of any sort in the future.... although I love the panniers and tank bag I have.