Great, thanks.  Wow, so there's (hopefully) two real 1:1 clones on the market.  That's great news.
I'm just about to order both the Ivogo and the SXK at 3F so I'll report back in 8 days or so as to how they compare.
If the SXK is as good quality - which I have confidence it will be, because their 1:1 clones are, in my experience, very 1:1 - then it will be a tempting proposition because it costs $11 less.  The difference being the included decks
So you can pay $33 for five decks, or $22 for one.   Or, as I'm doing, $22 + $3.50 + $3.50 = $29 for three decks.  I only want those three (W + B + D) not all five, so that's a good option for me.  I can't see a need for the S and C decks. 
Oh, and the SXK has one other advantage - a nice choice of colours! 

  Either as part of the full kit, or as optional tank sleeves/AFCs.  Although I guess if both Ivogo and SXK really are fully 1:1, then they will be interchangeable anyway (and with the authentic as well.)