What's up everyone.
I think that everyone made very good points on your revue about the SP-555 advantages as well as disadvantages.
I had the SP-555 for a few weeks now and I must say that I like it for the purpose that I'm using it for.
Understanding that every ones purpose would be different,
I just recently started using it as a DJ peace as well as I recently started DJ'ing for different occasions.
As a producer and song writer first, I am using it as a ( scratch pad) writers tool with samples and a built in mic. As a DJ music enhancer, I use it such as, playing fat bass drum sounds and patterns sampled loops when mixing live, the crowd go crazy.
Also, when doing re mixes it's the best, I fill my CF cards full of samples and mix away with this baby.
I also use it with a 800mA DC 9 V. car adaptor when the wife is shopping, she could take her time while I am in the car making beats.... that's what's up.
OK, now the cons: I was a little bothered that you will need to keep the pads at its designated fixed midi note numbers (can't change them) if you would like to use it as a controller pad like the Trigger Fingers or an Akai MPD 24,
but I guess you could work around that one,

if the gear you want to control can adjust to the SP-555 pad numbers.
I was also a little bothered about the time signature could only be used in the 4/4 area so any 3/6 or 3/8 something with other time signatures ''forget it''

I will need to use the MPC 1000 or Motif XS or Sonar for that.
I believe that it delivered what it said that it would according to the manual, and I also like the way that Roland came out very quickly with an OS update, that shows support.
I am still waiting for the Korg Zero 4 + 8 mixers to fix the meany problems that it has for months, and Korg is not talking about any OS update releases as of yet.
As far as sampling manually, I would (time) feel out the delay in the sampler and press start when the sampling started, if that doesn't work I would use the PC and edit the sample, then drag it on the CF card, place it into the SP-555 and it's perfect, you only need to get it right once.
Good job all, we need to know the truth about gear from us, the end users, not just the hype from the company's. Thanks everyone.
Peace & blessings.