I absolutely love this card. I agree that there are better options for top-tier decks, but for a fun deck or league deck, it's fabulous. It's also a viable alternative to more expensive cards for people who can't afford them.
I run a 2-2 in my fun deck, and it really comes in handy. Lifting is invaluable for early-game set up and energy acceleration, even if you don't get it out there on your very first turn. A non-top-tier deck may not have that many tools to do the same thing. Delivery is great too, especially considering that you can get any card out of your discard. And both are no energy. What's not to love?
Ominous Wind isn't the greatest attack ever, but it's gotten me out of a few jams. Given that psychic weakness is so common, it can do a decent amount of damage and gives you the always-welcome opportunity to confuse your opponent and prevent a retreat.
This card is also really useful for those turns when you don't want to (or can't) do a damage attack. If it can take a hit and you can get it active, you can use either of the free attacks to get some needed cards, and then just float it back next turn with free retreat.
I use the MD Drifloon with this. 20 for 1 energy is good. It forces a switch, but you may well want that. It has a no-energy attack that can take a card out of the discard. It's flippy, but any no-energy attack is welcome and this one is much better than a lot of them. 60 HP is pretty standard, but hey, at least it's better than 50.
The verdict--Drifblim SF is all kinds of awesome, particularly as an alternative to many more expensive cards.