I am looking to replace 14 windows as well as 2 sliding glass doors. I have been pricing windows for about 3 weeks now and I seem to have it limited to the Pella Therastar or Survivor Relabilt series 7000. The sales manager in Lowes told me that the Survivor is slightly better, but not worth the cost increase over the Pella. Could someone please give me some advise or an opinion.
