I do not think I am being harsh with this hub. I think I am doing a service to the OP with my review.

I assume you own a Downtube Mini? I owned a DT8H with this hub on it so that's how I know about the hub. Even though this is perhaps the only IH option for a 16" wheel folder it is almost worthless on a full sized bike that the OP is riding.

I Never said this hub wouldn't last. I rode it for over a year and the only hassle was having to fine tune the cable every few weeks and of course having to stop pedaling to shift (God I hated that).

I didn't know it can take a 19T cog since the manual specifically states 23 or 25T only. The manual also also states that you must stop pedaling in order to shift.

http://www.sturmey-archer.com/hubs_8spd_XRF8.php#

If you do a search for reviews of this hub here you will find that stop pedaling to shift is mentioned a lot.