I stay at Desert Inn and Suites. I have timed my walk from my room at the back of the hotel to the security back check to 7 minutes.
I have walked from Desert Inn and Suites to CVS at the corner of Harbour Boulevard and Katella and it took me 20 minutes.
I just checked it on Google Maps for bposhtels. It is way down Harbour Boulevard. Google says 30 minutes walk to Desert Inn and Suites.
bposhtels is past Toy Story Parking Lot, which for most people is the cut off point for walking.
The thing which most people dont factor into walking times is all the crosswalks and having to wait at the pedestrian traffic lights, as well as distances being longer than they look on Google maps.
After a long park day, walking distances matter.