I have tried a few panorama stitchers in my time and never been totally happy with the results.
Adobe Photoshop - OK
Hugin (pano tools) - OK
Kolor Autopano - Quite good
Google Photos - Upload photos and hope it wants to stitch them, but low quality output
Recently tried Microsoft Image Composite Editor and I was surprised how good it was.
No hassle, throw some photos at it, select a few options and it creates a high quality panorama.
Where other software has given stitch lines/marks on certain photo sets Microsoft Image Composite Editor has breezed through them.
(this is not an ad)