Gearing is out by 10%, might not seem much but it is enough to make it annoying have to rev hard to get up to speed to change up and then be low down on revs and need to build up again, driving in town is a ball ache, country roads, also a ball ache, highway is nice unless stop start jams.
Only time it gets better is with a 1.4 transfer box or 4.12 ring and pinions.
I run them, this is my own personal experience. Not hear say.