I have now though but still only reached the 4th cartridge in use, have with no 1500. What has particularly disappointed me: in autumn I put a new cartridge for about 20 charges. Over the winter / spring device on the shelf. At the first meeting a month ago the lamp was already up the ghost (orange lamp lights when they go to the end). So maybe 200-300 total charges.
If the price were not so high, would such a "mistake" rather cope ... but at 20 euros?
