The size is kind of small but acceptable if you're fine with a size of iPad 2018, this one is bigger. Pen sensitivity and delay are also acceptable. With the super cheap price, (8,500 THB in my local store, or 249 USD in official website) I recommend you to use this for alternative device.
Anyway, I still find the way to replace my Mobilestudio Pro. Sending to Singapore from here is pain so I need a little more time for preparing my parcel.