Recent reviews by Technomancer

Extremely replayable, even after reaching the level cap. Many missions, many guns (it's one of the selling points, after all). Nice art style, good humor. Best played with a friend or 3. The only big DLC not really worth it is Sir Hammerlock's Big Game Hunt. Psycho is more fun than Mechromancer. If you have a choice between the Pre-Sequel and this, get this.

Extremely replayable. Infinite missions, easily modded, many skills. Huge, open world.

The only problems:
Magic is underpowered
Archery is overpowered
Smithing, Enchanting, and Alchemy, if abused, make the game too easy
No Kinect (this game is actually "better with Kinect")

Worth its full price. I had in on XBox, and then bought it again for Steam.

The Dragonborn DLC is the best, but most mods require Dawnguard.

It's a fun, wacky game. Many upgrades, many missions, very customizable. As for replayability, there are a few missions that have alternate endings, but that is about it. Once you get to the end of the game, you are literally invincible, so it's not all that fun to free-roam the city at that point. Best with a friend. Recommended, but I'd get it on sale if I were you.

Hard at first, but very fun. Controls are fully customizable, but it's better played with a controller. As for replayability, it has a "New Game +" feature, allowing for an increased difficulty level with the same character.