Funny, I too have a Lumia 800 which I 'detest' and a Nokia 701 which I love.
I'll give some geniune remarks.
Things I hate on Lumia 800/WP7.5
- No haptic feedback. Not even on keyboard. Only 3 standard bottom-keys have haptic feedback (can be disabled in settings).
- Skydrive integration in Pictures works great but uploading photos scales them down instead of keeping original size
---> You need the seperate Skydrive app to upload original size?!?!?
- No Screen orientation lock. Particularly important in Nokia Drive (or other navigation tools)
---> is not a Microsoft fault perse. Nokia can simply add screen orientation lock in Nokia Drive and/or Nokia maps.
- No contacts or agenda integration in Nokia Drive (unlike Symbian version)
- Nokia Drive has less settings like route-priorities (avoid toll or ferry, etc...) and no clear list of POI's
---> you can 'search' for a POI which works but there's no option to automatically show POI's of your choice.
- Nokia Maps only works ONLINE. It automatically switches to satelite view when zoomed in far enough.
- Browser sometimes crashes or behaves eratically slow.
- costumisations are poor
---> Only Ringtones can be added (of particular size, format and genre). You can't add SMS-, voicemail- or email-tones.
---> You're stuck with black or white bgnd and a limited set of 11 accentcolours
- No call recording (increasingly important as more and more countries ban cellphone usage while driving)
- No front facing camera (no videocalling possible not even 'standard 3G videocalling')
---> this only on Lumia 800/710. Lumia 900 has front-camera which suposedly works in Skype. Dunno if 'normal' 3G videocall work too on L900.
- No local USB syncing with local contacts and agenda (e.g. outlook 20xx).
---> Vista's mobility center doesn't even work with WP7.x (though this was created with mobile syncing in mind). Client-confidentiality doesn't allow me to put clients data 'in the cloud'.
- No file manager!
---> No bluetooth file transfer (not even photos and ringtones)
---> No wifi SMB/CIF file transfer either
- battery last just one day.
---> only USB charging. Standard Nokia 2mm pin-chargers aren't compatible
- signal strength bar and battery-status dissapears, can be seen by swiping on top of phone but only in portrait mode.
- No full multitasking. Many things, like e.g. downloading items, stop when phone goes in standby/sleep.
- taskmanager is not a 'manager' (e.g. you cannot quit a program) but only a simple taskswitcher
- audio is not very loud (ringtones) and not much bass (compared to Nokia 701)
---> even the earpiece sounds tiny compared to e.g. Nokia 701
- Radio has no RDS (though specs indicate otherwise)
---> you cannot play radio over speaker only through headphones.
- screen is beautifully crafted but...
---> Pentatile screen is not sharp with small text although it has more pixels.
---> Colours are way too saturated. Not adjustable (unlike e.g. Samsung SGS2)
-----> CBD is less effective on Lumia 800 than the version on Nokia 701 (IPS LCD)
Things I like about the Lumia 800/WP7.5
- initial use is fast and so is startup
- easy to use and easy to find stuff
- screen rotation works great. Where used, it works both in left and right rotation (Symbian auto-rotate only works in left rotation). Sometimes used to good effect as witnessed in the calculator.
- calculator is great. Rotate phone left and right gives different calculators, besides the portraid standard calculator.
- Great twitter, linkedln and facebook integration in contacts plus possibility of filtering between these.
- camera button activates camera even when locked (can be turned off in settings)
- lovely design, great included rubber cover.
Unfortunatly the minus points outweight the plus points. Particularly local PC syncing and call-recording are important issues for me. The latter is in fact the only thing that keeps me on Symbian.