I usually have trouble recommending a lower-end sibling like the HP Envy Photo 7155 over its higher-end brethren, the HP Envy Photo 7855, when the latter comes with an ADF, and the former doesn't.
Reasonable purchase price; Good overall print quality; Low running costs with Instant Ink; Attractive design; Supports SD card flash memory
Cost per page is high sans Instant Ink; Potentially wasteful two-cartridge ink cartridge set holds all four inks; Noticeable banding when printing dark gradients and backgrounds