(Sorry to revive an old thread, but thought best keep all the info in one place.)
My current experiences with CHI aren't good. I placed an order with them 2 months ago. All the parts were shown as in stock on the website, but the carbonation lid couldn't be shipped because the carbonation stones were out of stock. I didn't mind the items being out of stock, but little communication made the situation much worse.
A month later, the order was shipped. One item was marked as on back-order, but there were several other items missing or incorrect quantities. (E.g. 2 liquid and 1 gas keg post instead of 1 liquid and 2 gas.)
I've emailed 4 times over the past 2 months and never had a reply. Today, I re-sent my latest mail via the contact form on their website. If I don't hear back in a couple of days, I'll call them.
The company has a great selection of products, some that I've not seen elsewhere - it's just a pity they don't back up the great product selection with great customer service.