Just came back from the tyre shop. Finally replaced my front 2 tyre from XM2 to SP Sport J5. The shop sold off another 2 sets that's why I can't change all 4. 
But because of that I could also make a comparison between the J5 and the XM2.
Initial feedback was:

1. Noticeably more quiet than XM2, especially when driving on a harsh and uneven road. Maybe because the J5 has slightly softer compound than the XM2.
2. Car felt stable at speed around 100km/h (No chance to test at higher speed due to traffic)
3. Dry grip is decent. Not sure about wet though as there's no rain at the moment.

Total spending just now was RM226, free balancing, steel valve. Will replace my rear 2 this coming Tuesday. Hope my initial feedback could help some of you who are considering this tyre. 

Glad that I could help you in deciding your next tyre for your car. And once again I'm back to provide some feedback in wet performance for the J5. Just came back just now and driving on wet road, drizzling too. Initial feedback was, wow the tyre handles pretty damn well in the wet. Passing by a big puddle of water is very stable, even comparable to the XM2. Passing by the puddle of water with this tyre did not give you that "drag" feel like what the XM2 gives.

Based on my initial review is that this tyre is worth my money in any way. Good grip in wet, decent dry grip, and decent tyre noise too (XM2 might be slightly more silent when it's new but turns out after using up 30-40% of the thread). However tyre is still new so I can't really give you the full review in terms of the noise. But all I have to say is, give this tyre a try. In terms of rolling resistance, I have to monitor my fuel consumption for more accuracy, but base on initial feedback, rolling resistance is good too. Hope this help you.

I believe the drag feel is due to the "longkang" on the tyre itself. The J5 got 3 whereas XM2 only have 2. Maybe that makes a difference. Dry grip is decent. However I do feel that the steering response is slightly slower compared to XM2, but is just a very slight delay, perhaps not even noticeable. As for ride comfort, more or less the same as XM2, with the J5 being a little softer and comfortable. As of now, the J5 is at my front whereas the XM2 is on the back. Most of the road noise is generated from the back, so I can safely assume that the J5 emits little to no noise (maybe because still new also).

For the time being, yes but don't forget I'm comparing a new tyre to a 3 years old tyre.

Sure thing. Just replaced my rear 2 tyres to J5 as well. After changing all to J5, cabin noise had reduced significantly. As for road handling and grip, I will report after I've traveled 1000km with this set of tyres. 

Ah I see. Actually before replacing my car's tyre to the J5, I've considered few tyres (Yokohama C.drive2, Bridgestone Ecopia EP200, and Yokohama Bluearth AE01), but C.drive2 being my most favorable choice among all due to all good feedbacks from sifus here and experience as well (was using C.drive2 on my old myvi last time). But this round's tyre change reminds me of the recent launch event which I was involved in (working as an event crew which happens to be Dunlop's SP Sport J5 and Formula D05 launching event), and get to know that Continental is now manufacturing these tyres. Happen to know that Continental made these tyres, I kinda gave the J5 (as the D05 do not have 14" variant) a try without much consideration.

After riding on these tyres for about 2-3 weeks now, I have to say that I'm satisfied with it, apart from it being a little bit soft (in terms of sidewall). Road noise generated is decently quiet but not the quietest I've ever had, grip is decent in dry and wet. However I might give other brand a shot during my next tyre change as I'm not much a brand-loyalty kind of person. 

Anyone else have their feedback on this tyre?
I really think there is nothing more "worth it" tyre brand/model compared to this.

Maybe just not that soft of tyre wall to me (also could be because my tyre pressure is 34 psi). Haha

Yeah if I'm not mistaken the C Drive 2 is 2010-2011 year design. But nonetheless still one of the best choice when it comes to tyre choice. I'm riding on a same tyre size as you as well. After running in the tyre for about 1000 KM, the tyre actually got more comfortable and silent. Dry and wet grip is still the same as when it's new. Very satisfied with this tyre considering the price of it.   

Any reason for your dun like Goodyear? Myself dun like rubbish Silverstone.

Have to agree with you on that. Used to drive myvi which has stock Silverstone Powerblitz 1800 tyre on it. Real rubbish tyre. Skidded on straight damp road, and the best part is I'm not travelling fast at all (around 50km/h).

IMO Goodyear Duraplus is quite acceptable if compared to any Silverstone tyre within the 14" size range. My sister used that tyre before on her new myvi. Decent but her current Bridgestone Ecopia EP200 is much better than the Duraplus in terms of comfort and grip.