smudge. we are very pleased with ours, we had Anglian, the admin was appalling (we gave them six weeks notice of the required fitting date and were assured that this was ample, but they "lost the paperwork" and the day before they were due to come phoned us and said that NONE of the windows had been made...long messy story...) but the fitters were excellent, clean, tidy and made a really good job. The hardwood surrounds make the windows look more "real". We have teak finish hardwood windowsill indoors and out, but you can paint the wood instead of varnishing it. we get the outside wood refinished with sadolin about every 5 years and they have kept their looks beautifully