I recently searched about the Sq-1 too and ended up getting a Calvins Sq-1, but I havent received it yet so I cant vouch for it. Cubetwist is also worth a look at apparently. The problem with Sq-1's seems to be popping or lockiness.
Imo yes, the WeiLong is pretty much nothing like a zhanchi. It's worth looking into cubes that feel different. By that logic I could equally recommend a Guhong v2, a Maru CX-3, a FangShi ShuangRen and a Gans III. Forget the HuanYing, its close enough to a WeiLong but a little worse imo. It does have a special feel to it as well but I'd still say its worse than a WeiLong.