It seems like an ambiguous concept to me that allows for infinite possibilities, but I dont have a problem with that. If this God has never provided any proof, then a description of what it is and what it wants has to remain ambiguous at best.
The biggest problem for me with deism is that it does not allow for the possibility of atheism. Atheism is certainly not a possibility that can be ruled out. Since the dawn of man we have to admit that its one scientific conclusion that we appear to be progressively drawing closer & closer too, unlike the worlds other religions which we seem to be moving further & further away from .
I don't have a problem with deism on any personal level. I just feel it's a rather limp idea. I like to have some concrete beliefs that affect real life, either mine or the world in general. Beliefs that at no point make any meaningful contact with the real world seem rather pointless to me. You might as well admire the flying teapot...
And frankly deist was the atheist of the 18th century. It was the comfortable thing for a disbelieving gentleman to call himself at time when atheism was still a pretty punishable offense. It's a really outdated belief system.