Some leading exchanges have spent a lot of effort over the past two months, finally launching a new spot trading solution. But what happened? After trying it out, the experience is actually not as good as the original system. Spending so much time and resources on optimization, only to end up with this result, makes one wonder if the idea was flawed or if the execution just didn't keep up. In other words, sometimes tinkering for a long time isn't as comfortable as just keeping things the way they are. Many users have also expressed similar feelings—after the new features went live, they actually felt less smooth to use. It seems that not all new things are necessarily improvements.