@azmanam: Full text opens new tabs for me too, but when I click a hit to open the review page it opens it in the same tab. I would prefer if I could open it in a new tab so that when I was done picking out hits I would have them each open in their own tab. On an unrelated note, thanks for the tip about Alpha.
@nox: There's a lot of overlap, but I find its worth it to search both. When Reaxys/Bielstein switched over to the web based version I used it much more, mostly because I hated using the SciFinder client. Now that both are web based I use them about equally.