Short answer....NO!

I would argue that they manipulate the market. Coinbase has an easy interface and GDAX is a nice add-on, but I am looking at Gemini and CEX. I am not making any big buys right now, but might get away from Coinbase because they always go down at "just the wrong time." If it was not for that, I might be a little more open-minded. On the lighter side....Steem is ripping upwards at eleventeen kabillion miles per hour!