It agressively pushes all the other products Baidu has, like every other Chinese big app, but Baidu's reputation is especially bad, think about it as Baidu's Wechat super app. You can try Tencent Map.
If you are using Android, then get ready being asked for all kinds of permissions as it's Chinese apps' tradition, some apps even outright refuse to run if you decline it.
Anyone have more info about this? What does/can the app do with the permissions it has?