As is the case with most legal inquiries, the answer to the above question is “it depends.”
Whether or not you should appeal your DC DUI conviction depends on what you are looking to get out of the situation. If you are only trying to avoid the trial court’s sentence, maybe an appeal isn’t for you. On the other hand, if you would like to have your conviction overturned and your conviction removed from your record, maybe an appeal is for you. Obviously, all three results are preferable. However, avoiding your sentence is impossible due to time it takes for the parties to brief the appellate issues and the time it takes the DC Court of Appeals to issue a decision.