hey guys just wondering is the brake booster easy to get off and can they possible cause ur brake to go spongy most times

more likely the fluid is s**t by now. Bleed it all through & replace. other thing it could be is worn pads.

Booster generally goes & makes the peddle very hard.

Spongy more likely to be hydraulic, when was the system last bled, the booster more for boosting your breaks, your pedal can go rock hard with an air leak.
what's the master cylinder like

booster isn't to hard to change, though unbolt the master cylinder, disconnect the air line, unbolt from the firewall in the cabin, disconnect the pedal, and feed it out, can be a wee bit tricky though space wise.

ive bled the brakes twice now no air pockets in there as i use a brake bleed kit with clear tube and they still feel s**t and remember ages ago they use to just grip really good now u gotto push harder to get it to pull up to stop its get annoying. i replace all pads front and rear. u think i should pull the master cylinder off and replace the seals or something?

yeah, rebuild the mast cyl. seals are probably shot