I guess with Hobby King, the price is king, but the customer experience is far from royal.
First the Pros:
They do have low prices, and a fairly good selection in some items.
Now the Cons:
The Hobby king web site has to rank as one of the most frustrating retail web site experiences I can remember (and I have a good memory).
On the surface, the web site looks professionally designed, but once you start to navigate and use it, the reality of how bad this site (and possibly the company) is rears it's ugly head.
I already had a good idea of which items I wanted, and as a word of caution: do any research before you go to the Hobby king web site, because any information that would help you make a decision is not easy to find.
Locating the items you want will test your patients. Don't use the search field unless you have the product ID number. Entering an item name or description (without the product ID#) will get you a list of items– most of which aren't even close to what you're looking for, and what you really want probably won't show up on the list. It's better to use the links on the left side of the home page, and go from there.
They do have what should be useful features that would help you make a decision, but the ones I tried were not only useless, but also counterproductive:
Such as the "Compare" button, when you're looking for electric motors or batteries, and are trying to find something equivalent that's in stock and not backordered (which as you'll see, a lot of items are backordered). Don't even waste your time with this feature. You get to it by clicking on a particular item (battery or motor), when the product page comes up, scroll to the bottom and click on the "compare" button, it will bring up a field with sliders so you can choose the size and specifications you're looking for. This is where it falls apart: after your sliders are set to the specs you want, click "search" and you'll get a long list of items that don't match the specifications you just entered. Here's the kicker: they might actually carry items that should be on the list, but you'll have to ferret them out on your own, because they won't show up in the compare list (at least they didn't on the few searches I did).
An interesting feature is the automated "one time only" discount that will pop up if you stay on a product page for several minutes. The problem is: when you add the discounted item to your cart, that item may or may not show up in your cart, and if it doesn't: say goodbye to the discount (it's not that much anyway). And if you change the number of items before you click the "add to cart" button, it absolutely won't show up in your cart.
Several times I had the dozen or so items in my cart, or wish list, just vanish, and the discounts along with them. I would advise making a written list of everything you're putting in your cart (with the product ID#), so you can recreate your cart when everything you've loaded into it suddenly disappears.
And don't bother trying to get help from anyone on the live chat when your order starts acting weird: I tried that several times, and never got a helpful suggestion. However the Product Specialists have found some products I was having trouble finding, so the live chat was useful for that purpose.
I did wind up ordering with Hobby king, and my order showed up reasonably fast (however, I didn't have any backordered or bulky items on my order).
About Hobby King's return policy:
I'm guessing Hobby King makes their return policy time consuming (weighing the package you want to return (it must be accurate within a few grams), taking pictures of the whole order, etc) to discourage customers from sending back items that are either damaged, or the wrong item, that are not expensive enough to be worth their while. But so far I haven't had to return anything, so I don't have that experience to report.