Oooh, that looks promising - they stock for my model [HP M552dn] and in the high-yield version too, for £30
How long have you been using them now?
Approx number of pages?
Can you notice any difference in quality on the page?
I bought a new HP laser jet printer 5 years ago for a very good price which has served me well and been very reliable.
Finally, the toner is showing low and I'll need to buy a replacement soon.
Genuine original HP toners for this model [508X] are about £230-£260
eBay "new" can be found as low...