It was an amusing episode....
I felt sorry for Fry.....it was kind of Bender's fault he was late for work (since he couldn't sleep) and his date with Leela (which he probably forgot about due to his lack of sleep)...
..and before he gets to make it up to her,he's roped into helping the Professor and Bender with the time machine (it was a nice touch that,many years later,Leela ends up getting his birthday card for her,and she realizes he didn't stand her up on purpose),which of couse ends up traveling thousands of years in time with nowhere to go but forward...
...I thought it was funny when the Professor referenced "Roswell That Ends Well"..."We can't go back in time,so you can't do anything disgusting,like sleeping with your grandmother"...Fry:...yeah,I don't wanna do that again!!!!
Also that Bender wanted to stay in the bleak,human warzone future,and got mad at the others for not wanting to stay....But,he got his revenge on them by not letting them stay in the all-female scientist future (where they could've gotten a reverse-time machine :sweat

...
It was interesting seeing how they got to the end of time and everything just restarted (and Leela even managed to leave a sweet message for Fry)...Of course,the Professor messes up,and they have to repeat the cycle a few times...
The ending was great,too...Fry ends up being on time for his date with Leela (although in the process,Fry,Professor,and Bender end up crushing their original selves with their machine :sweat

,and the episode ends with Bender burying the bodies.....