Ecoseal - home insulation - any comments?

[dubinamerica]

Hi, had someone from Ecoseal come out to do an assessment of my house and he rang through the cavity wall insulation and improving insulation in the attic and then getting the BER completed. Has anyone used these? Any comments? Couldn't get much technical detail from him regarding what was in the beads, but he appeared diligent at checking the house and gave me an estimate the same day.
I'm based in the west of ireland, so if anyone has other recommendations I would greatly appreciate it, or any feedback on Ecoseal would be great.