I just ordered a Club Sim. Will most probably port over my line from Birdie (where I'm paying $50 for 600MB) to Club Sim's $58 for 20GB. I'm guessing given the CSL backbone, it should provide better coverage than Smartone's Birdie. Having said that, the CLub Sim app is beyond horrible. I'm hoping it's a set it and forget it kind of thing, otherwise, it might become a massive hassle.
Just an update. Tried porting over my number to clubSIM and the whole process just sucks. Their app is basically just trying to show the webpages and doing a shitty job at that. The whole thing just crashes half the time and the response from customer service is "please try reinstalling the app". I have given up on the idea of using it until they fix the app.
Just an update on International roaming with SoSim.
Just called their CS and was told this is already enabled, including making and receiving phone calls and text messages abroad.