All of these machines look like they are aiming firmly at the Sunday morning hobby market. Personally speaking, I wouldn't want either of them in my workshop. I suspect that you will quickly become frustrated with them. Also, the price quoted for them is almost too good to be realistic, which leads me to think that they may be using Chinese knockoffs of real hardware and electronics. Do yourself a favour and buy a decent machine to begin with, from a reputable company. I appreciate that money can be an issue, especially in today's economy, but buying what appears to be the cheapest machine on the planet, is a guaranteed road to disappointment
You mentioned "Free shipping", there is no such thing, trust me on this. Make sure that any company you deal with is being straight with you about the exact shipping costs involved, otherwise you risk unexpected surprise expenses when the machine lands at your chosen port. Obtain the HS codes etc for the machine and check with your local customs about import duties and taxes etc and local shipping companies about transport costs. It may be beneficial for you to also obtain quotes from local ship forwarders and let them deal with the shipping for you, that way you will know exactly how much it costs and when/ how the delivery will take place. Make yourself aware of every aspect of the deal and ask lots of questions until you are satisfied that both you and the manufacturer you are dealing with, have a clear understanding of your requirements and exactly what is being quoted for. Take anything said in telephone or skype conversations with a pinch of salt, if it is not in black and white on your quote, it is not binding.
I am a UK based agent for Quick CNC, so would naturally love to see you show some interest in buying from them. They manufacture a small hobbyist machine, the K6090D, which is half decent, but if you could afford it and have space for it, the K6100A would be a much better choice. A little larger machine than you are currently looking at, but is several orders of magnitude better engineered and built and definitely a step up from what you are looking at. Sure it costs a fair bit more money, but you really do get what you pay for no matter what machinery you are buying. There are lots of other good machines in the 600*900 sort of size from other Chinese manufacturers that have a proven track record, you should consider those too before making your final decisions. There are more than a few reviews on here that can give you some confidence and guidance in your purchase