Stagecoach Oxford

I use the X30 service to travel into and from Oxford for work from Grove, its a 45 minute journey on a good day.
The morning busses are generally on time and the drivers are friendly and helpful.
I particularly like that one of the journeys is run by a tube vehicle which is much more comfortable than a standard bus and at that time of the morning, its nice to curl up and have an extra forty minutes or so of sleep! The other busses, however are more than adequate and seem to be kept clean. Just wondering though, in the 21^st century why they don’t have seat belts yet?
The evening bus journeys from 5pm onwards are late everyday and this is highly frustrating, I think someone tested these journeys on a sunday or a bank holiday! Do not rely on these to get you anywhere on time, it is okay for me since I am only traveling home.
Of course you expect there to be a lot of traffic at this time; so it would simply serve better to have a more realistic timetable. The 5.20 bus frequently turns up at closer to 6pm when it is supposed to have finished its journey by 6.15
The prices therefore seem a little steep when punctuality should be a given. A monthly pass is still cheaper than driving to Oxford everyday though and works out at half the cost it would be if you bough a bus ticket everyday.