I quite like my Apeks regs. I've probably got about 10 of them. But they are all T and TX series, it does seem quality control went down the bog after they were bought by AL. I've never had any real issue with mine despite not being particularly careful with them. They used to be a commodity regulator, if you needed a load for a project then they were cheap and reliable. Now they are neither cheap nor reliable. I'd probably buy Scubapro if I was buying regs now, the only thing that puts me off is I know how to pull apart and rebuild my Apeks and no idea where to start with SP.