Perfect to avoid being fooled by Epson

I am demanding in terms of quality when the product is not a brand. Here it is not the brand EPSON but Tintetec (very serious), which offers an alternative, extremely interesting and almost 6 times less expensive than the product sold by the manufacturer.
Having bought 3 lots of 20, I can leave a global opinion.
The pros: - the print quality is really exactly the same, really no difference (I compared with 2 color documents printed photos with the "end" of my printer option)
- THE PRICE! (It is so low that it is indécent..du least in theory)
- They are both recognized and as quickly as the original. I do not know why, but I with my SX235W I never had recognition problem for 2 years now using these cartridges (to be confirmed later).
The -: it seems that the cartridges are less satisfied than the original, I would say that almost as many prints (say that we may be able to print 15 copies in less roughly but not more!)