I ended up getting the starter box, plus the GU10 and a coloured bulb.
After a frustrating experience trying to get it all out of the boxes, worst packaging from Ikea ever had, got it setup on my desk plugged into my switch which everything else is plugged into but would not connected and seemed to be in a reboot loop, now the instructions say to plug directly into the router, but being that I had a switch in my room I though no don't need to do that, however when I plugged the gateway directly into my router it worked first time very odd.
Pairing the bulbs is a bit of a pain atm, as you have to go into the App, add a device, find the remote that you paired during the setup, hold that by the bulb, press the button on it for 10 seconds or so the bulb will flash then will appear in the app.
From there you can assign bulbs to groups, create moods etc, currently Tradfri does not support any digital assistant but this according to their Twitter feed is due to be rolled out on 1st November. The coloured bulb I got is pretty good but atm the app only allows you to select a pre-defined set of colours, rather than having ability to pick any colour you like.
So far I am pretty happy with the use of it, and with Alexa integration I think will work out really well, for me the cost of the bulbs is a winner, substantially cheaper than Hue bulbs once you have bought into the eco-system, as startup costs are pretty much the same.
Kimbie