L&C received good evaluation from Mikhailtech. You need to know Mikhail is a high school kid but with some reputation. L&C is a brand name from Deer and Deer has AMD stamp of approval.
The main complain about Deer used to be overheating. I know from experience it makes quite a noise. It looks that L&C is significant improvement with respect to old Deer, according to Mikhail.
In fact L&C is not that new as Mikhail claims, it has been around for awhile
I have one L&C and it still overheats but if you have bigger well ventilated case it is OK. I wouln't like to put it in a small case, it can increase the temperature inside the case considerably. I don't know about stability mark, Mikhail claims it is fairly decent except for the 12V line. So I guess it is fine for AMD system.
Again, not the first class but OK. If your system is precisous and important to you that might not be OK for you. Macron is a decent choice too.
It looks to me a bad idea replacing Antec with L&C or even Macron unless you have a lot of devices. Antec is the first class, arguably the best power supply money can buy, more stable and more powerfull than these two unless there is a significant difference in nominal power rating.
I'd prefer Antec 300 to L&C 350. The only 350 power supplies I 'd replace Antec 300 with would be Enermax, HEC/Heroichi, and Sparkle. Actually Sparkle 350 is even not that expensive and then you can really relly on that for a big system with a lot of devices.
This all might look irrelevant but when you think of the ways a bad power supply can damage your computer then it is quite important what kind of PSU you have.