Whole Wheat Starter Question

I have some ww starter, that I haven't fed in almost a year. It was in the fridge and was looking kind of... Well, ugly. The liquid was on top and was all dark and the body didn't look that hot either.  Finally, I decided to see if I can revive it. So I opened the lid and was very surprised when it didn't smell bad. It actually smelled kind of yeasty and sweet. Almost like honey without any of the rotten smell that I expected to find. So I fed it with some King Arthur ww flour and it doubled in size in approximately 2 hours (at room temperature). Can I use this starter? Does it matter that it has been neglected for so long? Thanks for your advice!