Generally they are awesome, but every once in a blue moon, it make take them a few hours to get back to you. It's still better than just about any other company out there since most of them take 24-48 hours on average to get back to you.
The nice thing about smokeless image is that you can also call them. I have never been on hold for more than a minute or two.
Don't give up on them yet. I'm sure they are growing by leaps and bounds considering they are the most recommended "mini" in ECf. I have personally sent them about 20 new customers