Colour cartridges can often be more hassle than black ones.
I've tried several different makes of 'remanufactured' (refilled) and 'compatible' cartridges over the last couple of years and have not yet found one that does the job properly.
Some the printer (HP PSC 2355 all in one) just does not like (error messages like 'colour cartridge incorrectly installed' or 'incompatible colour cartridge present'), some instal but one of the colours runs out really quickly (most recently the yellow ran out after only a few pages so the printer couldn't do green !!), and all sorts of other hassle.
Basically, genuine is the only way to go (I've several 'duff' colour cartridges in the recycle bag !!), and this twin pack of cartridges is an excellent find !!!
Price is great (even compared to remanufactured/compatible), delivery was really quick (2 working days after placing the order), and the printer thinks they are great !!
No error messages at all, clear & consistent colours, and they seem to be full of ink as the printer's been banging away and the ink guage has hardly moved.
A great buy !!