it's loading really really really slowly. I don't like this sentence: "Make great graphs and charts easily on the web." Why not "Easily make great graphs and

it's loading really really really slowly. I don't like this sentence: "Make great graphs and charts easily on the web." Why not "Easily make great graphs and charts for the web - it's simple, and free" Your transitions of the graph examples are too fast, and I can't manually click through them. they're also not that interesting. got any interesting data to plot? The "click here to learn more and see it in action" feels like a distraction from the sign up button. do you need both? why not put that link below the charts, it feels like if the user cares enough to focus on the slideshow they might want to read more. You shouldn't really need an additional page to explain your service though. Whats your nearest competitor? Guess its like, Excel? What are the pain points there and how do you solve them awesomely? The blogger/student/designer links are too subtle, it isn't clear what they update. (eg: scroll down 20% and click them - nothing happens) There is probably too much text. Try stripping out all the detail for each benefit (eg: Works with popular data formats) and have a simple bullet list of every feature. maybe tapping them shows more information regarding them to the right. Chances are different people care about different features, it might be clever to reorganize bullet points based on what role they tap, eg: designers might care about themes, academics about latex, marketeer about pdfs. From a design point of view I think the site looks nice, the logo at the top is maybe too high and pushes your content down 75px too much, the buttons are quite ugly. The twitter button stands out a bit too much and the free sign up button doesn't really pop - I like green for primary CTA. The 6 examples of visualisations aren't clear and feel like I should click them and a light box will pop up showing an example. the sign up page needs some polish. make the fonts consistent, change the heading from "Pretty Graph Basic Account Beta" to "Pretty Graph Registration" or some such. Scrap the line about the pricing, capture the data then tell them. When i clicked "sign up" it redirected me to a 403 for /users. The "Creating account" text is too obscure, it should probably be a spinner, a nice rule of thumb is that if you need a spinner - do it faster. i just accidentally reloaded, so i'll give more feedback in 15 minutes when the page has returned ;) disclaimer: i am math retarded and charts confuse me. i do however know a thing or two about product messaging/marketing (IMHO)