Enterprise is my favourite Star Trek series largely due to the time period it is set in and the relateable crew members. I absolutely love it and was expecting a great finale to do the show justice. Instead we got a finale filled with plot holes and continuity errors... Personally, I thought the finale was too much of a The Next Generation episode and not really centred on the Enterprise crew like it should have been. The main cast should have been allowed to take centre stage in their final episode and made it an episode to remember, for all the right reasons.
For me, Terra Prime (the amazing penultimate episode) is the finale as it left the series on a hopeful note with the formation of the Federation and Trip/T'Pol's relationship. This finale was just a waste of potential. Very disappointed.