I was a member of the 2 under 2 club. Mine are now 3.5 years old and almost 2 years old. I'd say the difficulty level goes up and down - when your youngest is little, you still get nap times to do stuff (with or without your toddler), then when they start crawling or walking you need eyes absolutely everywhere. Overall it does get easier. Now mine are the age they are, they play very well together (with the occasional argument) and can amuse themselves while I do some housework. My daughter no longer has a daytime nap and my son refuses to go to bed at night until 7.45pm, but other than that they're pretty good! They both sleep through the night and have done for ages, and that really helps.