Anyone used Stonefacings Ltd for Granite worktop?

Based in Mullingar. I've just received a competitive quote from them to supply and fit granite worktops but just wondering if anyone here has any feedback, good or bad? The quotes I've been getting for granite are so varied, some with as much as a €2k difference.
Thanks.

We bought our kitchen through Nolan Kitchens and our worktop came from Granitefacings.. All fine except they have to come our to do one small problem.

Thanks Polo1, just to check - is that the same company I'm referring to i.e. Stonefacings Limited? Based in Mullingar Business Park in Mullingar. Regards the problem ... is it a big thing, was it caused by lack of good workmanship?
Many thanks again.