I gave it a spin via Vanguard. It calculates more income than we spend so that is OK but then I asked for recommendations. Their recommendations do not change risk level (1.01 vs 1.01).
It recommended that I drop DH's IRA % in Wellesley from 96% to 35% and buy GNMA, 500 Index and Total Stock Market. Then it said to sell my tiny % of Oakmark Intl. What the heck, no international?
They recommended for DH's Roth that I sell Vanguard's Mid-Cap Growth and replace it with Int Term Bond fund; mine they significantly decreased V High Dividend and had me buying Vanguard's Total Stock Market, GNMA and Int Term Bond indexes with that $.
After what happened with the bond market a few years ago not having a professional manager hand pick them sends shivers down my spine.
Would you make the changes Financial Engines recommended for no decrease in risk level. FWIW I do like Financial Engines methodology from a mathematicians standpoint.