My experience isn't with branded Trangias but with the much cheaper (i.e.£30) Gelert copy, but as with the branded £60 version it comes with a storage bag, a webbing strap to keep it all together, 2 good sized pans, a frying pan, a kettle, the 2 part windshield/pot-stand and the meths burner with a simmer ring/snuffer attachment. All the pans are anodised aluminium and it's reasonably lightweight. I love it, it's a brilliant set up that for carrying purposes is about the size/shape of a 5lb roses sweet tub, if not a little smaller. if you buy the right kit to go with it most of that and your brew kit will fit inside. I moved onto this from an Esbit Spirit Stove which looks the part but requires a fairly substantial wind break to go around it in use, something the "Trangia" doesn't, all in all the Gelert isn't finshed as nicely as the Trangia but its a good substitute and even though it's only officially for spirit and bio ethanol gel it stands up to the use of twigs and small dry wood if that is your thing and you can use esbit/hexy tabs too. Those struggling with soot could try using a little water it your spirit, I've gone as low as a 70% fuel/30% water and didn't see any particular issue with soot build up but I've never bothered with a timed boil to find out if it's as efficient. You can also just wipe a bar of soap around the bits that come into contact with the flame which improves the clean up at the end and the soot just wipes off in the wash. There is a school of thought that suggest the soot actually improves the thermal efficiancy of the stove and so you should leave it messy, in which case the answer is bag each part up individually to avoid soot transfer
This is all personal opinion but for me using a cheaper alternative Trangia-alike system.
Pro's: Lightweight for a complete cooking set, true multifuel stove, easy to use, easily packable, very, very stable. Lights easily at normal temps with a firesteel or lighter (for safety I use a long candle lighter rather than a cigarette lighter)
Con's: Cheaper finishing kit with one or 2 rough edges, the smell of meths gets everywhere (try using isopropyl alcohol instead? Don't know how safe this is for food use but it smells nicer and isn't purple). Can be hard to light at low temperature when using spirit fuel.
A differently branded version is currently available for £17 here
http://www.sportsdirect.com/karrimor-cookset-and-burner-787092?colcode=78709290At that price just buy it and see what you think. Get your meths from a pharmacy if you can find one that sells it or Wilko's in the decorating section, much cheaper than camping fuel from the specialist shops (£3 for 500ml last time I bought it as opposed to nearly £10 for the same sized Camping Fuel)