Update: 01/15/15
--I highly recommend downloading the demo (which I had no clue was available at the time of purchase) from the game's website
(http://www.homebrewgame.com). Personal experience will tell you far better than any review whether or not you'll find this game worth the money. --
My "no" recommendation is MUCH more qualified than earlier. The game has been streamlined a bit, optimized a lot, and shows no signs of ceasing improvement.
In addition, the developers added a link in-game to community YouTube tutorials and improved its in-game manual. The physics are still cardboard-balloonish, but I feel like they will improve with time.
In addition, as you can see below, the developers definitely care about this game and LISTEN to criticism rather than trying to squash it, which makes them ok in my book.
I still honestly think it's too rough to justify the price, but I sincerely think that could change if development continues at this pace.
----------Previous review----
My "No" Recommendation is qualified; please read the full review for an explaination.
If you're anything like me, you played Banjo Kazooie: Nuts & Bolts and fell in love with the vehicle-building system.
Ever since I played that game, I've been looking for a game that was essentially -just- the "screwing around with vehicles" aspect of BK:N&B. When I saw this on the store page, I thought I'd found it.
So far, I was wrong. It definitely has promise; don't misunderstand me. Conceptually, it really is a neat vehicle-building sandbox. But it's in rough, ROUGH alpha shape. The physics are currently of the "cardboard balloons" variety, the camera is weird and unintuitive, and the game still isn't great at explaining how to use all its features. It's not egregiously bad and it's not unplayable, but it feels like it's a very long way from the finish line.
Now, then: If I don't think it's -that- bad, why am I not recommending it? Well, because of the price. So many Early Access games do this; they take an early build and charge way too much for it. If this game was $4.99 in its current state, I'd recommend it pretty solidly, because there's enough here to be mildly entertaining for now and enough promise to keep an eye on the game. As it stands, $17.99 (or $15-ish at the moment) is just too much cash to drop on something this rough.
If the dev keeps working on it, this game CAN be the game I've dreamed of, and when it's closer to that, I'll heartily recommend it. Until then, I suggest wishlisting it and checking in every now and then to see how it's coming.