Bluevua Countertop Reverse Osmosis Water Filter System + Extra Carafe $354 + Free S&H

Bluevua Countertop Reverse Osmosis Water Filter System + Extra Carafe $354 + Free S&H. Thumb Score: +15. Anyone have any experience/knowledge with this? I was going to get an under the sink RO system but this one seems more convenient for a similar price without any installation hassle. I wasn't going to get the countertop initially because I read that the filter needs replacing sooner (every 3-6 months) vs 12 months for under the sink ones, but this model claims to need replacement every 12-24 months, with all 4 filters costing $150 to replace (bit pricier compared to the under the sink ones). I am thinking of buying this. Is it a good buy?