The platform is godlike. I worked at Titletrading for a while and can say I find it way better and it's stable. Once in a while when prices move fast, you might get a message asking you if you want to confirm the trade. Although I find this bizarre and slows you down sometimes for nothing, it's the only little glitch thing I could find. I sent GFT Forex an email asking them to get rid of the white border around the candlesticks and instead they outright changed the background to white which is way worse (you can change it after installing it). I prefer the black background. In any case, you do get the ability to change parameters the way you like for the technical indicators. Without making this post too long, I can say you have to flexibility to do what you want to do.
Your analysis is inaccurate. You have quoted Oanda on their weekend spreads which are artificially raised to 10 pip wide on the majors. the real Oanda spreads as of 7am are: