sukhoi is a little baby yet, it is built on a good concept in which it permits you to construct all kind of structures from your fetched data easily. It has a shorter learning curve due to its base concept too. The second example in sukhoi web page is extremely simple and it does something that if you are going to implement using other crawler it may get a bit tricky. Try conceiving the two examples in sukhoi using those web crawlers it should give you a feeling about how sukhoi makes things easier.