Somebody needs to make some I <3 serpiq tshirts.
I just analysed a full complete site and then worked my sites architecture along with which keywords I want to target first. This used to take me half a day, it took me 15 minutes with serpiq.
I was able to find a nice little KW with 4,400 monthly searches and a serpiq score of #30, it's in a nice tasty little niche so I have no doubt that will bring in an easy $100/month with very minimal effort.
serpiq also gives me some idea of what type of links I should be building, for example I can quickly see what the top10 sites have in terms of social signals - if they have significant #'s then I will bother with social proofing the site, otherwise I give it a miss.
I had honestly planned on spending the rest of the day setting this site up, but I should be finished in about an hours time. It's a sunny day outside, so I am going to go read a book instead.