@Ronnie Hossain Pella was sued and settled the case for Pella ProLine casement, awning, or transom window which were manufactured between January 1, 1991, and December 31, 2009 (“Pella ProLine Casement Window”) As @millworkman said, most issues people having is improper installation, and for every complaint, we address when it comes to newly installed windows or doors or anything else for that matter 90% of the issues are related to improper installation or flashing applications, etc. Not sure what happened in your case since you didn't say what issues you experienced yes some company representatives do try to point the arrows at the installers but most of the time they're right because not many follow the manufacturer's guidelines and not only when it comes to windows I see that with backer board installations, with composite decking installations, etc. That being said, I'm not defending Pella window manufacturer, I never used Pella and never suggested using them, just telling you based on my general experience... If you take the best product out there and you do not follow the manufacturer's minimum installation requirements there will be issues. Good luck

In my opinion I would keep looking as I would not use Pella in any series. 250 Series to me appears to be a vinyl window so I would look at Softlite, Polaris, Okna are a few of the better brands available. I do believe you should be able to find a better window at a lower price than that (I may be wrong and if I am I am sure some one will correct me).

The impervia is a great window, but it does not even come close to compairing with wood. I have used both and I have even combined them in one house. If you use Brown, White, or Tan then they look the same from outside. In areas like bathrooms, utility rooms, kids bed ect use the impervia. In areas that need to be more formal use Wood. On either product you can install after market muttins from Creative Mill Works - They even use the same 3M adhesive Pella uses. It will cost a bit more, but you can get the exact grid style you want.

Anderson rep was presenting the vinyl clad with engineering wood inside option. Not sure which specific line it is. She was from Renewal by Anderson. Any particular reasons why you suggest against Pella/Alside - is it the low-end /vinyl part or brands in general? Would the wood on inside of elevate not be susceptible to rot? also eventually i plan to replace windows and in my budget would very likely be vinyl, will they look really out of place with a wood (painted white) pine patio door? (i dont have windows in that same room, but would be in adjacent/other rooms. for reference i replaced interior doors last year with menards 6 panel wood painted white). lastly, any thoughts on Marvin essential series (vinyl), likely to be cheaper as well. sorry for all the follow-ups, there are so many options and not having enough expertise/experience/feedback on who to trust, getting very confusing. glad we have this site with experts like you guys contributing.