Obviously it's all about personal opinion and what you find fun. In D1, even though I'm a fairly 'casual' player when it comes to intensity, I quite enjoyed taking my time with a team systematically working my way through a nightfall. The timed aspect has really taken the fun out of it for me. Too frantic. Too easy to ruin with a few errors. I guess it's because I play games for 'fun' more than I do 'challenge' and that's why I don't find the rush aspect fun at all. Just some feedback. I know players who play for challenge will like it, but timed aspects to games or missions has always felt like 'artificial' difficulty added on if you know what I mean. ***Edit *** As per a lot of people's great ideas, a tiered system would be great. Either one nightfall where running out of time gives bronze rewards. Within a certain amount of time left gives silver rewards and with a lot of time left, gold rewards. Other option is 2 nightfalls, regular version with no time for decent rewards and a timed version for top tier rewards.