Hi all, I've been thinking of getting an upright compressor, both to save space in my van and for portability, and I recently spotted this one in the SEALEY catalogue -https://www.sealey.co.uk/product/5637197909/compressor-50l-belt-drive-2hp-oil-free What are your opinions on this machine? Any other uprights you'd recommend? Would replacement parts be readily available? I don't know too much about compressors in general, but reading these forums it seems that belt driven is better than direct drive - why is that? Is oil free better than oiled - again, if so why is that? Looking forward to seeing your feedback, thanks.