Hi, new forumy personage here (don't let that put you off).
Danny, I just purchased the RSF-284 (it's different to the RS-284) with the RSH-12.
I cannot comment on the RSH-61, because I went for the RSH-12. But the RSF-284 is superbly well made, compact and easy to carry, but opens out to almost 6ft (I actually thought i'd received the wrong product). It has all the features of much more expensive top brand tripods, I have a friend who's about to dump his 6yr old top branded tripod for one of these.
I have to be honest, I thought it would just be a rebranded cheap Ebay "made in china" piece of kit, but it's not and I owe Redsnapper an apology for even thinking it.
There aren't many reviews for the RSF-284 out there, but I think there soon will be.
Any negative comments will come from the supplied QR plate, which is ummm.... "Basic", it does the job perfectly well, but I have to remove it to use my sling strap.