The train may be packed when it leaves/arrives at Rose Hill but it's worth remembering that it serves the Hyde loop and when I use it, it seems to be pretty busy along the length of the line.
I've been stung by trains being cancelled, and over the years it's averaged at a good number more than one per 12 months, but some of these were down to the persistent theft of trackside cables. Saying that, it can sometimes feel like the service is the first one Northern Rail sacrifices when they are short of staff/trains