I love this scarf for the spring and early fall because it is so lightweight...I am making a silver glitter one for wearing with my boring black dress for all those silly company parties! I finished a red glitter one this past weekend...I will post it this weekend...fast and rewarding is right!
For a bag with lots of pieces, I use a diagram with my steps and number each piece...I did this because I have mixed up pieces that fit, but the patterns did not match!
I think with the AB bags, you need to take extra time to match patterns, plan in advance, and then take your time...you also want to use the best quality fabric you can afford because it is a lot of work...but really, not all that difficult once you execute your plan...
I think it takes three times as long for me to plot it out then to actually make it!
I would go for it as long as you feel confident in your sewing skills...you might make some mistakes, but the learning process is part of the fun!!